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Extended Essay In Science

The Easter Break is nearly upon us. Ten years ago this might have been a cue to eat more chocolate than you can handle. But if you’re in DP1 of the IB that small thing called the Extended Essay will be hovering on the horizon. You know that you should think about it over the break, but whether you do or not might depend on how much Netflix you have to catch up on. To start the research or not to start?

If you read our first post in this step-by-step guide, on choosing an Extended Essay topic, you’ll know that we think you should definitely start as soon as you can.

So what do I mean by research? I’m talking about the intense stuff. The in-depth exploration that will inform your essay, and which you will be able to use later on in your Bibliography. Good research is the key to making everything easy for you during the writing stage. If you’ve done the research properly, then the essay structure, the case study, or the experiment will practically plan itself.

But how do you do the research so that it is as effective as possible without taking over your entire Easter break?

1. Know WHAT you’ll need

Read the Extended Essay Guide for your subject (yes I am going to recommend that in every part of this guide, so you may as well do it now!). For all subjects it will tell you whether you need primary research, secondary data, or a combination. Work out whether ‘research’ for you means gathering data compiled by someone else, creating your own data, reading other people’s opinions, or digging out hard facts. Depending on what your subject and topic is, your research might be the crux of your entire essay, or it might simply give you ideas to enhance your own thoughts.

Use the Guide to define the limits of your research. Your Extended Essay has to focus on your chosen subject as defined by the IBO (and World Studies has its own definition and requirements). That means you must define your subject in the same way, e.g. “Biology is the science that deals with living organisms and life processes”. Use this to work out where your research should take you. And don’t waste time doing research that takes you into another subject area, E.g. Medicine.

Work out how recent your research needs to be. Again, this is a way to save time! Economics, for example, shouldn’t be historical. That means your information needs to be recent! Equally research in the Sciences goes out of date very quickly so stick within the last couple decades, and newer is better! (as long as it’s reliable… I’ll get onto that). For Literature and History, it’s less important that your sources are new, although it’s easier than you might think to quote what sounds like a very insightful idea only to realise it was first written in the 1920s!

Exercise 1: Read the guidelines for your subject and write down what kind of research you’ll be doing. Is it Primary or Secondary? Will you conduct your own experiment or use data from someone else’s? Are you looking for factual information or theories? What window of time do you want your research to have come from? 2013-2016, or 1980-2016? Write it down now because later you can check your progress against this to make sure you’re staying on track.

2. Know WHERE you’ll find it

For the Extended Essay you’ll need to go beyond Google and beyond the shelves of your library. A good Extended Essay Bibliography should be a varied pick and mix selection* of online and off-line sources, modern dates, and obscure and established publications. Remember those 40 hours the IB recommends you spend on your Extended Essay? Your Bibliography is proof that you have been working hard!

But how do you get all those sources? Ask your teachers. If you don’t have a supervisor yet, I can guarantee you that your librarian knows more about what you have access to than you realise. Find out what subscriptions your school has, both online and off. If your library doesn’t have a book in stock it might be able to order a book in for you. Find this out.

For Science, it’s vital that your research is up to date. That means your material will probably come from journals, (reliable) websites, and studies by other scientists. Consider approaching universities and other academics who may be able to point you in the right direction.

On the other hand for something such as Literature your primary research should mean reading your chosen texts, whether they are novels, plays or poems. Consider supplementing this with other first-hand materials such as journal entries, letters or essays by the author or their contemporaries. Finally secondary research encompasses the ideas of other academics, although the Guide states that these should not replace your own analysis and ideas.

It’s not too hard to work out whether a source is reliable or not. Most of the time it’s common sense; can you name the author? Do they have experience in what they’re talking about or might they know less than you? It’s okay to use sources that may have a bias or might be ignorant of one thing or another, but the key is to be aware of this and make it clear in your essay that you are aware of it.

Here are some good online places to go for information:

Google Scholar: Basically Google except that it will show you only the academic resources related to your search: articles, essays and legal documents. In other words, all of the stuff here should be fair game to put in a Bibliography.

Google Books: Free books! Lots of them! And the best part is you don’t have to admit you used Google; for all the examiner knows you dug through the dusty shelves of a library yourself. Even for books which only have a preview this is useful to work out if a hard copy of the book would be useful to you.

JSTOR: If your school has a subscription to this, use it! A database of hundreds of academic journals which make for great background research. However be aware it doesn’t include the latest research, so make sure what you find here will stick within the dates you defined earlier on.

Public Library of Science (PLOS): An open access online library of scientific literature. Includes science-related journals. A website full of poetry, short stories and novels of almost every ‘classic’ author whose work is out of copyright. When it comes to referencing later, it will probably look better to go and dig out a hard copy of the work purely for reference purposes, but this is handy for initial browsing.

Wikipedia: Didn’t think I’d put this on here, did you? This is obviously not good as a source in itself, however if you scroll to the bottom of most Wikipedia pages you’ll often find a pretty comprehensive list of sources that are directly relevant to the topic and which you could use as a starting point for your own research.

Exercise 2: Make a list of the resources you think will be useful for your essay, and which you know you have access to. And remember that different search engines are useful for different subjects.


3. Know HOW you’ll get it

Believe it or not, research requires research. It won’t happen by accident and takes careful planning in order to get the most out of the sources that you use.

After you know where you might find useful sources, do some initial digging to find out what’s out there that will be specifically useful for your chosen topic. As I mentioned, Wikipedia could be a starting place for this. Or you might need to do a quick search through the database of your school and local libraries and place orders for books. Whatever you do, keep a list of everything you find that might be useful to you, and use it as a checklist. You won’t have time to read it all at once.

Plan out your research time in blocks to make sure that it happens. And think about what you can do in different places. It goes without saying that you’ll be able to do your online research at home, but think about what articles you could download to read when you don’t have internet. If you take a book out of a library you will be able to read that when you don’t have a laptop in front of you.

Finally, think about when the research will be most useful to you. Is there information you need to know before you undertake a lab investigation? What about data that will make more sense after you’ve done some initial reading? Thinking about all of these things will make sure that your research is as effective as it can be.

Exercise 3: Make a plan of attack (also known as a schedule) for what you’re going to do in what order, and how long it will take. For example (this one is for English A):

4. Keep track of everything!

You’ll need a reference for anything you use that you didn’t pluck out of your own head. This applies to:

  • Quotes
  • Ideas and Summaries
  • Data
  • Images

By ideas and summaries I mean any theory or idea that is not common knowledge. So you don’t need to reference the fact the spinach is green but you might need to reference what green food colouring is made of.

There is no set referencing system that you need to use in your Extended Essay, but you do get marked on how you use it. So make sure that whatever you choose, you use it consistently. Ask your supervisor which one they would recommend, and it’s useful at this stage to have a skim of what information you need to keep track of as you go along. Guides for the different systems are easily accessible online on websites like this one:

Anytime you read something that might be useful, make a note of all the information you’ll need to include in a Bibliography later. That will usually include the author name, title, the publisher, the year and place it was published, and the page numbers.

Keep track of your research by extracting the key material onto your own document. Whether that means copy and pasting the vital quotes, summarising the idea or saving an image you might want to use, make it as accessible for yourself as possible! Don’t just keep a document of links to articles you found interesting! When you want to plan your essay I promise you that you won’t remember what it says. This:

Is much less useful than this:

“When beginning Mrs Dalloway, Woolf intended to write “six or seven” grouped short texts” p. 143, Wild Outbursts of Freedom: Reading Virginia Woolf’s Short Fiction, Nena Skrbic (2004), Praeger Publishers, Westport, CT

Exercise 4: decide how you will organise your research:

  • Create a EE research folder on your laptop and create blank documents inside it, labelled depending on what you might need, e.g. journal articles, primary research, hard copy books.
  • Assign a physical EE folder for any handwritten notes that you make, whether in a library or just out and about.
  • Choose your referencing system.

Got that? Okay… I think you’re ready!

Read Part 3: The Question

extended essay in environmental systems and societies

​The extended essay (EE) is an integral part of the IB Diploma course. In order to write a good EE in ESS you need to first of all be interested in and passionate about the environment; and secondly be prepared to put in the hard work.

You will research and write about an environmental topic or issue of relevance to you and your environment. Your
writing should cover the environmental system and how society functions – you must conduct an analytical

It is important that you read through this guide before you even think about doing EE in ESS. You can also go to the IB and read through the subject specific guide or to the DP Extended Essay Home page

​​Extended Essay Information Guide (from the IBO)

Environmental issues are occupying a position of increasing significance on the world agenda, and an extended essay in environmental systems and societies provides students with an opportunity to explore an environmental topic or issue of particular interest or relevance to themselves and their localities. Since the subject is a multidisciplinary one, the student will need to select and integrate theoretical contexts and methodologies from those academic disciplines appropriate to the chosen topic. In this respect, a systems approach is considered particularly effective, and students will be expected to show some employment of this approach in the analysis and interpretation of the data gathered.

An extended essay in environmental systems provides a candidate with the opportunity to explore questions in terrestrial, freshwater or marine environments. The characteristic nature of an essay in this subject will lie in the application of a systems approach to an environmental issue.
​Choice of topic

Environmental systems and societies focuses upon the interaction and integration of “natural” environmental systems and human societies. An essay in this subject should likewise focus on this relationship. It should not deal exclusively with ecological processes or with societal activities, but instead should give significant (though not necessarily equal) weight to both these dimensions. A topic should be chosen that allows the student to demonstrate some grasp of how both environmental systems and societies function in the relationship under study. For example, while the environmental systems and societies syllabus includes a study of pure ecological principles, in an extended essay it would have to be explored within the context of some human interaction with the environmental system. Similarly, while the syllabus includes a range of philosophical approaches to the environment, in the extended essay, these would need to be addressed in relation to specific natural systems. Great care should be taken, therefore, to ensure that the topic chosen would not be better submitted under one of the more specialized subject areas of either the experimental or the human sciences. This would invariably apply, for example, to topics focusing exclusively on human health, disease or politics.

Before a final decision is made about the choice of topic the relevant subject guidelines should be carefully considered.
You should aim to choose a topic that is both interesting and challenging.. The topic chosen should be limited in scope and sufficiently narrow to allow you to examine an issue or problem in depth. It should present you with the opportunity to collect or generate information and/or data for analysis and evaluation. You are not expected to make a contribution to knowledge within a subject.

A crucial feature of any suitable topic is that it must be open to analytical argument. If the topic chosen fails in this regard, and lends itself only to a descriptive or narrative treatment, then the student will be denied a large proportion of the available credit according to the assessment criteria. For example, it would be of minimal value simply to describe a given nature reserve; it would be necessary to evaluate its relationship with a local community possibly, or compare its achievement with original objectives or with a similar initiative elsewhere. The topic must, in some way, leave room for an argument that students themselves construct and support from their own analysis of the information, rather than simply reporting analysed data obtained from other sources.

There are also some topics that should be considered unsuitable for ethical or safety reasons. For example, experiments likely to inflict pain on living organisms, cause unwarranted environmental damage or put pressure on others to behave unethically must be avoided. Similarly, experiments that pose a threat to health, possibly using toxic or dangerous chemicals, or putting oneself at physical risk during fieldwork, should be avoided unless adequate safety apparatus and qualified supervision are available.

These guidelines should be read in conjunction with the IB extended essay general guidelines.

​A further critical feature of a successful topic is the sharpness of its focus. If a topic is too broad, it will inevitably lead to a relatively superficial treatment that, again, is likely to penalize the student right from the start. In topics that are too broad, it is unlikely that students will be able to produce any significantly fresh analysis, arguments or meaningful conclusions of their own. To clarify the distinction between a broad and a sharply focused topic, the following examples of titles for environmental systems and societies extended essays are intended as guidance only. The pairings illustrate that focused topics (indicated by the first title) should be encouraged rather than the broad topics (indicated by the second title).

· “The ecological recovery of worked-out bauxite quarries in Jarrahdale, Western Australia” is better than “Environmental effects of mining”.

· “A comparison of the energy efficiency of grain production in The Netherlands and Swaziland” is better than “Efficiency of world food production”.

· “The comparative significance of different sources of carbon dioxide pollution in New York and
Sacramento” is better than “Impacts of global warming”.

· “Managing the environmental impact of paper use at a Welsh college” is better than “Paper recycling”.
It may further assist a student in refining the focus of their research if, beyond the topic and research question, he or she also produces a succinct statement outlining the overall approach of the investigation.
​Some examples of this might be the following.
Topic Impact of exotic plants on herbivore diversity in Tanzania
To what extent does the length of time after an exotic plant has been introduced to an area, and the latitude from which it originates, affect the diversity of herbivores found feeding on it?
Research question
A fieldwork investigation into the diversity of epiphytic herbivores on a range of exotic plants in the Kilimanjaro region, linked to a brief historical study of each plant’s introduction.
Topic Evaluating the philosophical aims and achievement in local conservation
To what extent are the philosophical principles and objectives of a local conservation group being fulfilled in protecting the local environment?
Research question
An analysis of literature and attitudes from a conservation group, along with a quantitative analysis of records of environmental quality.
Topic The ecological footprint of the school canteen
From the major inputs and outputs of the school canteen, what overall estimate of its environmental impact can be made in terms of an ecological footprint?
Research question
An analysis of records and practical measurements assessing the inputs and outputs of the canteen, and a synthesis of data into a holistic model indicating the environmental impact.
For some investigations, particularly those that are experimental, a clearly stated hypothesis may be just as acceptable as, and possibly better than, a research question.

​Since the IB course in environmental systems requires expertise in both earth and life sciences, it is to some degree interdisciplinary. Great care should be taken to ensure that the topic undertaken for an extended essay would not be more appropriate to biology or geography, but represents a truly integrated systems approach to the environment. Although similar assessment criteria apply to all extended essays in the experimental sciences, for an extended essay submitted in environmental systems the topic chosen must allow for a systems approach. That is to say, the topic should allow for the collection of objective, usually quantitative, data that can be used for the construction of appropriate models, such as graphical representations and flow diagrams.

How do I come up with a good research question?
  • It isn't easy, but it is important!
  • Decide on a subject in which to write the essay
  • Check the list of available subjects here
  • Read the IB's criteria for your subject
  • Read an exemplar essay in your subject
  • Decide on a topic within this subject
  • Explore some possible research questions relating to this topic
  • This means you will need to do some research!
  • Discuss these with your adviser

During the first meeting with your adviser, discuss the research you've done, your ideas, and the requirements for your subject. Decide on the most suitable research question

For some investigations, particularly those that are experimental, a clearly stated hypothesis may be just as acceptable as, and possibly better than, a research question.​
​Treatment of the topic

An extended essay in environmental systems and societies may be investigated either through primary data collection (from fieldwork, laboratory experimentation, surveys or interviews) or, alternatively, through secondary data collection (from literature or other media). It may even involve a combination of the two, although, given the limited time available and word limit for the essay, the emphasis should be clearly with one or the other to avoid the danger of both becoming rather superficial. If the essay is focused largely on the collection of primary data, the student needs to exercise great care in selecting appropriate methods of data collection and carrying them out effectively. Before commencing the investigation, students should explore literature relating to their methodology, and also any pertinent research that may give them guidelines and useful points of theoretical comparison. Hence, even in an investigation based exclusively on primary data, the bibliography should indicate at least some recognition of secondary sources, perhaps supporting the choice and implementation of methods or providing an academic context for the conclusions.

If the essay is focused on secondary data, the student needs to take great care in selecting sources, ensuring that there is a sufficient quantity and range, and that they are all reliable. There is a great mass of populist, journalistic, partisan and unfounded claims available through the Internet and other media.

The student must take on the task of sorting through these and using only those sources that have some academic credibility. An essay of this type would normally be expected to produce a substantial bibliography and not be limited to just a few sources.

From whatever sources the data has been collected, it is vital that students are involved in producing their own analysis of the data and arguing their own conclusions. This will happen more naturally if the essay is based on primary data since the data will not have been previously analysed. A source of secondary data, however, may come with its own analysis and conclusions. In this case, it is essential that students further manipulate this data, or possibly synthesize it with other sources, so that there is clear evidence in the essay of the student’s personal involvement in analysis and drawing of conclusions. Whether using primary or secondary data, students should construct their own critical arguments by using and evaluating the sources available to them.

Finally, a central theme in the environmental systems and societies syllabus is the systems approach, and this should be reflected to some degree in the extended essay. The essay should include an attempt to model, at least partially, the system or systems in question. The term “model” in this context is intended in its broadest sense to include, for example, mathematical formulae, maps, graphical representations and flow diagrams. Systems terminology should also be used where appropriate.

​​Interpreting the assessment criteria

Criterion A: Focus and method

This criterion focuses on the topic, the research question and the methodology. It assesses the explanation of the focus of the research (this includes the topic and the research question), how the research will be undertaken, and how the focus is maintained throughout the essay.

To meet this criterion, a sharply focused research question defining the purpose of the essay must be stated clearly within the introduction. It is not sufficient simply to include it on the title page or in the abstract. To make “effective treatment possible”, first, it must not be too broad, which will lead to superficial treatment. Second, it must allow for critical argument, and not simply require a descriptive or narrative treatment. For example, “To what extent is X like Y?” allows for argument, whereas “What is X like?” only invites simple description.

​The introduction should set the research question or hypothesis in context. For example, it might outline necessary theoretical principles on which the topic depends, summarize other related research conclusions, or give a brief history or geographical location of the issue under discussion. The introduction should also indicate the significance of the question being researched—Why is it important to answer it? What value might it have to others? What implications could the findings have?

It is also important that the introduction does not become too long. Material should only be included where it is directly required in order to follow the overall argument of the essay
In this subject, it can be quite acceptable to formulate the research question as a clearly stated hypothesis.
This may be particularly appropriate, for example, in experimental investigations. A hypothesis, as the starting point of an experimental investigation, will always lead to the implicit critical argument concerning the extent to which the results support or refute it.
​Criterion B: knowledge and understanding

This criterion assesses the extent to which the research relates to the subject area/discipline used to explore the research question, or in the case of the world studies extended essay, the issue addressed and the two disciplinary perspectives applied, and additionally the way in which this knowledge and understanding is demonstrated through the use of appropriate terminology and concepts.

​Students are expected to have a sound knowledge and understanding of environmental systems and societies, as detailed in the current Environmental systems and societies guide. For many topics, this knowledge will need to be supplemented through independent study. Ultimately, the student should possess sufficient knowledge of the topic to handle the issues and arguments effectively. To score highly on this criterion, a student would also need to show clear and perceptive links between their own study and the body of theoretical knowledge associated with this subject

Where the study involves experimentation or practical fieldwork, a detailed description of the procedures used, possibly with diagrams or photographs, should be given, such that an independent worker could effectively repeat the study. Careful attention should be given to the design of experiments to include use of, for example, quantification, controls, replication and random sampling, where appropriate. The selection of techniques should be explained and justified, and any assumptions upon which they depend should be clearly stated.

If the study is based on the research of secondary data, students need to ensure that the selection of sources is sufficiently wide and reliable. Where Internet-based sources are used, for example, students should be particularly aware of their potential unreliability. Their process of selecting sources and data should be described and justified, and, in cases where there is a variety of relevant perspectives held, the selection of sources should reflect this. Where appropriate, there should be an indication of the methods by which the secondary data has been generated or the evidence upon which it is founded.

​Criterion C: Critical thinking

This criterion assesses the extent to which critical-thinking skills have been used to analyse and evaluate the research undertaken.

​There should be a clear step-by-step logical argument linking the raw data to the final conclusions. Each step or proposition on the way should be defended against any plausible alternatives and potential criticisms with clear evidence. Personal opinions are acceptable, but again should be convincingly substantiated by the available evidence. The argument must directly answer the research question in the precise way that it has been formulated.

Analytical skills can be demonstrated in the selection, manipulation and presentation of quantitative or qualitative data gathered from either primary or secondary sources. They will be most obviously apparent in the employment of such things as graphical representations, mathematical manipulations or flow diagrams. Analytical skills may also be evident in the student’s ability to select specific data from sources, identifying their relevance and relationships to one another, and reorganizing them into an effective verbal argument.

Evaluative skills will be apparent in the students’ reflections on the reliability and validity of the data gathered, and their subsequent interpretations. For essays concerned largely with collecting primary data, this will involve discussing inadequacies in the experimental design, the validity of assumptions made, limitations of the investigation, and any systematic errors and how they might have been avoided.

For essays concerned largely with collecting secondary data, similar considerations should be applied to the sources that were accessed.

​It is highly recommended that this aspect of the essay is given a separate section with its own heading.
It should contain a brief, concise statement of the conclusion that is in direct response to the research question or hypothesis. This should not involve new information or arguments, but should be a summary of what can be concluded from, and is supported by, the evidence and argument already presented.

In addition to the concluding statement, students should identify outstanding gaps in their research or new questions that have emerged and deserve further attention
​Criterion D: Presentation

This criterion assesses the extent to which the presentation follows the standard format expected for academic writing and the extent to which this aids effective communication.

Students are expected to use appropriate scientific and systems terminology, as employed in the current
Environmental systems and societies guide.

​This criterion relates to the extent to which the essay conforms to academic standards about the way in which research papers should be presented. The presentation of essays that omit a bibliography or that do not give references for quotations is deemed unacceptable (level 0). Essays that omit one of the required elements—title page, table of contents, page numbers—are deemed no better than satisfactory (maximum level 2), while essays that omit two of them are deemed poor at best (maximum level 1).

Particular attention should be paid to the use of graphs, diagrams, illustrations and tables of data. These should all be appropriately labelled with a figure or table number, a title, a citation where appropriate, and be located in the body of the essay, as close as possible to their first reference. Any downloaded or photocopied material included should be clearly legible.
​​​Criterion E: engagement

This criterion assesses the student’s engagement with their research focus and the research process. It will be applied by the examiner at the end of the assessment of the essay, and is based solely on the candidate’s reflections as detailed on the  RPPF, with the supervisory comments and extended essay itself as context.

Self assessment

​The table below is designed to help you think about the assessment criteria and whether you have addressed the expectations within your essay. You do not need to address all of the questions posed, but they do provide some guidance in terms of what to consider. (From IBO)
Grade descriptors

The extended essay is externally assessed, and as such, supervisors are not expected to mark the essays or arrive at a number to translate into a grade. Predicted grades for all subjects should be based on the qualitative grade descriptors for the subject in question. These descriptors are what will be used by senior examiners to set the boundaries for the extended essay in May 2018, and so schools are advised to use them in the same way.

​Environmental Systems and Societies Extended Essay Resources

The following provide good links for Extended Essay Examples


  • How does systems or models work on an ecological framework?
  • Change is aquatic ecosystem after human influence.
  • How do a particular species affect the food chain in an area?
  • Forest and woodland restoration in any region in (a specific country).
  • Extrinsic and Intrinsic Factors Affecting the Resilience of Corals in (a specific area).
  • Effect of Climate Change on Population Trajectories and Tropic Interactions in a High Elevation Riparian Ecosystem in (a specific country).
  • The Science for the Conservation of Coral Reefs in (a specific area).
  • Potential population growth and future changes in population of region.
  • How does carrying capacity of a named area will affect the population of that area?
  • Depletion of certain resources in an area effect the socio-ecological pattern of that area.
  • How certain mine effect the ecological and socio-economic of an area.
  • Assess the potential of geothermal energy in (a specific country).
  • Study and Suggestions for increased ecological footprint of an area in (a specific country).
  • Impact of mangrove biodiversity in Indonesia through human influence.
  • Changing aspects of equatorial rain forest and its effects on ecological set-up of the area.
  • Coastal Ecosystem its processes and anthropogenic impact in (a specific country).
  • Analysis of mangrove ecosystems in its impact of coastal area.
  • Physiology of tree I coastal area and its impact on environment.
  • How pollution management strategies in a specific area help to protect environmental concern in the area?
  • How unplanned development of human interferences can cause for ecological imbalances in an area.
  • Comparison of various water bodies in an urban area affect through human response.
  • How eco-friendly a housing society is? What role it has to conserve the environment.
  • Impact of an industry in water bodies or atmospheric condition of the area.
  • Pollution check and management strategies for canal route of (a specific countryP
  • Assessing impact of global warming in an area/species of plant and animal.
  • Recording and evaluating of various climatic data related to global warming and its impact in the current environmental conditions.
  • Interactions of Climate Change and Other Environmental Factors on Invasive Plant Infestation in (a specific area)
  • Human reaction and Socio-ecological impact of dam in any part of of a specific country
image from
​The topic is communicated accurately and effectively.
  • Identification and explanation of the research topic is effectively communicated; the purpose and focus of the research is clear and appropriate.

The research question is clearly stated and focused.
  • The research question is clear and addresses an issue of research that is appropriately connected to the discussion in the essay.

Methodology of the research is complete.
  • An appropriate range of relevant source(s) and/or method(s) have been applied in relation to the topic and research question.

There is evidence of effective and informed selection of sources and/or methods.

If the topic or research question is deemed inappropriate for the subject in which the essay is registered no more than four marks can be awarded for this criterion.​
Knowledge and understanding is excellent.
  • The selection of source materials is clearly relevant and appropriate to the research question.
Knowledge of the topic/discipline(s)/issue is clear and coherent and sources are used effectively and with understanding.
  • Use of terminology and concepts is good.

The use of subject-specific terminology and concepts is accurate and consistent, demonstrating effective knowledge and understanding.

If the topic or research question is deemed inappropriate for the subject in which the essay is registered no more than four marks can be awarded for this criterion.​
The research is excellent.
  • The research is appropriate to the research question and its application is consistently relevant.
Analysis is excellent.
  • The research is analysed effectively and clearly focused on the research question; the inclusion of less relevant research does not significantly detract from the quality of the overall analysis.
  • Conclusions to individual points of analysis are effectively supported by the evidence.
Discussion/evaluation is excellent.
  • An effective and focused reasoned argument is developed from the research with a conclusion reflective of the evidence presented
  • This reasoned argument is well structured and coherent; any minor inconsistencies do not hinder the strength of the overall argument or the final or summative conclusion.
  • The research has been critically evaluated.
​Presentation is good.
  • The structure of the essay clearly is appropriate in terms of the expected conventions for the topic, the argument and subject in which the essay is registered.
  • Layout considerations are present and applied correctly.
  • The structure and layout support the reading, understanding and evaluation of the extended essay.
​Engagement is excellent.
  • Reflections on decision-making and planning are evaluative and include reference to the student’s capacity to consider actions and ideas in response to challenges experienced in the research process.
  • These reflections communicate a high degree of intellectual and personal engagement with the research focus and process of research, demonstrating authenticity, intellectual initiative and/or creative approach in the student voice.
image from Alfa Tools Africa
​A: Focus and method
​Unpacking the criteria
This criterion focuses on the topic, the research question and the methodology. It assesses the explanation of the focus of the research (this includes the topic and the research question), how the research will be undertaken, and how the focus is maintained throughout the essay.
  • Does this essay meet the requirements for the subject for which you are registering it?
  • Is your research question stated as a question?
  • Have you explained how your research question relates to the subject that you selected for the extended essay?
  • Have you given an insight into why your area of study is important?
  • Is your research question feasible within the scope of the task? Could your research question be “answered” or it is too vague?
  • Did you refer to your research question throughout the essay (not only in the introduction and conclusion)?
  • Did you explain why you selected your methodology?
  • Are there other possible methods that could be used or applied to answer your research question? How might this change the direction of your research?
  • If you stated a particular methodology in the introduction of your essay, or specific sources, have you used them?
  • Are there any references listed in the bibliography that were not directly cited in the text?

B: Knowledge and understanding
This criterion assesses the extent to which the research relates to the subject area/discipline used to explore the research question; or in the case of the world studies extended essay, the issue addressed and the two disciplinary perspectives applied; and additionally, the way in which this knowledge and understanding is demonstrated through the use of appropriate terminology and concepts.
  • Have you explained how your research question relates to a specific subject you selected for the extended essay?
  • Have you used relevant terminology and concepts throughout your essay as they relate to your particular area of research?
  • Is it clear that the sources you are using are relevant and appropriate to your research question?
  • Do you have a range of sources, or have you only relied on one particular type, for example internet sources?
  • Is there a reason why you might not have a range? Is this justified?
This criterion assesses the extent to which critical thinking skills have been used to analyse and evaluate the research undertaken.
  • Have you made links between your results and data collected and your research question?
  • If you included data or information that is not directly related to your research question have you explained its importance?
  • Are your conclusions supported by your data?
  •  If you found unexpected information or data have you discussed its importance?
  • Have you provided a critical evaluation of the methods you selected?
  • Have you considered the reliability of your sources (peer-reviewed journals, internet, and so on)?
  • Have you mentioned and evaluated the significance of possible errors that may have occurred in your research?
  • Are all your suggestions of errors or improvements relevant?
  • Have you evaluated your research question?
  • Have you compared your results or findings with any other sources?
  • Is there an argument that is clear and easy to follow and directly linked to answering your research question, and which is supported by evidence?

This criterion assesses the extent to which the presentation follows the standard format expected for academic writing and the extent to which this aids effective communication.
  • Have you read and understood the presentation requirements of the extended essay?
  • Have you chosen a font that will be easy for examiners to read on-screen?
  • Is your essay double-spaced and size 12 font?
  • Are the title and research question mentioned on the cover page?
  • Are all pages numbered?
  • Have you prepared a correct table of contents?
  • Do the page numbers in the table of contents match the page numbers in the text?
  • Is your essay subdivided into correct sub-sections, if this is applicable to the subject?
  • Are all figures and tables properly numbered and labelled?
  • Does your bibliography contain only the sources cited in the text?
  • Did you use the same reference system throughout the essay?
  • Does the essay have less than 4,000 words?
  • Is all the material presented in the appendices relevant and necessary?
  • Have you proofread the text for spelling or grammar errors?

This criterion assesses the student’s engagement with their research focus and the research process. It will be applied by the examiner at the end of the assessment of the essay, after considering the students RPPF.
  • Have you demonstrated your engagement with your research topic and the research process?
  • Have you highlighted challenges you faced and how you overcame them?
  • Will the examiner get a sense of your intellectual and skills development?
  • Will the examiner get a sense of your creativity and intellectual initiative?
  • Will the examiner get a sense of how you responded to actions and ideas in the research process?