IB MYP Individuals and Societies: The Four Assessment Criteria in Practice

This guide works through what genuinely top-band evidence looks like for each of IB Middle Years Programme Individuals and Societies’s four assessment criteria, applied to real coursework tasks. The assessment revision notes list the four criteria and their scoring structure – this guide goes further, since knowing a criterion’s name is a different skill from producing coursework that satisfies its top achievement-level descriptors.

Where this fits in the subject

“Individuals and societies” spans multiple disciplines – history, geography, economics, and others depending on how a school structures the course – and the four criteria are deliberately written broadly enough to apply across all of them. A genuinely investigative geography fieldwork task and a genuinely investigative historical source-evaluation task can both generate strong Criterion B evidence despite using very different specific methods, provided each follows a systematic research question and process.

Criterion A: Knowing and understanding

Top-band evidence develops factual and conceptual knowledge about individuals and societies and applies it accurately to unfamiliar contexts, using discipline-appropriate terminology precisely rather than approximately. Asked to explain why a historical trade route developed where it did, top-band evidence does not just state relevant facts (climate, terrain, resources) – it connects those facts using an appropriate conceptual framework, such as supply and demand or geographic accessibility, to build a reasoned explanation, applying the same conceptual knowledge a student would use to analyse an unfamiliar trade route they had not specifically studied.

Criterion B: Investigating

Top-band evidence develops a systematic research question and process, working both independently and collaboratively. The public subject brief gives only a one-line description of each criterion, so it does not settle which criterion’s strands assess source evaluation; check the strand-level descriptors in your school’s copy of the subject guide. As general good practice, though, a strong investigation does not accept the first sources found without scrutiny. A weaker investigation into a local environmental issue might use only one or two easily found sources without comment on their reliability. A stronger one poses a clear, specific research question, consults a genuine range of source types – a government report, a news article, a firsthand community account – and explicitly evaluates each source’s reliability and relevance to the specific research question before drawing conclusions from them.

Criterion C: Communicating

Top-band evidence organises, documents and communicates learning clearly using a format and structure appropriate to the task and discipline, correctly referencing sources and using subject-specific terminology accurately throughout. Two students researching the same historical event illustrate the distinction well: one presents a chronological list of facts with no analytical structure and no source referencing; the other structures the response around a clear argument, integrates evidence from named, properly referenced sources at the points that support each part of the argument, and uses period-appropriate historical terminology consistently. Only the second demonstrates top-band communication, since the criterion assesses how the learning is organised and documented, not simply whether the underlying facts are accurate.

Criterion D: Thinking critically

Top-band evidence uses critical-thinking skills to analyse and evaluate the investigation’s own process and findings, considering different perspectives, and drawing well-substantiated conclusions rather than accepting a single source’s account or a single perspective as the whole picture. Asked to evaluate the causes of a historical event, top-band Criterion D evidence explicitly considers more than one plausible perspective or interpretation – how the event is represented differently by two different historical accounts, for example – evaluates the strengths and weaknesses of each, and reaches a substantiated conclusion about which interpretation the available evidence best supports, rather than presenting one interpretation as simply correct without comparison.

Connecting the four criteria to a single coursework unit

A well-designed unit – for example, a local-issue investigation combining history and geography – naturally generates evidence for all four criteria in one connected piece of work: the conceptual knowledge needed to frame the issue (Criterion A), the process of researching it (Criterion B), the structured, properly referenced write-up of findings (Criterion C), and a final critical evaluation weighing different perspectives on the issue (Criterion D). Revising each criterion as an entirely separate skill, disconnected from how a real investigation actually unfolds, risks missing how naturally the four build on each other within a single piece of coursework – strong Criterion D evaluation, for instance, is only possible once the Criterion B research has already gathered more than one perspective to weigh.

How to approach it

Practise applying conceptual frameworks to unfamiliar examples, not just the specific cases studied in class, since Criterion A rewards transferable understanding over memorised recall. Build the habit of explicitly stating why each source used is reliable or limited for the specific research question being asked, rather than treating source use and source evaluation as separate steps. Structure written work around a clear argument with properly referenced evidence rather than a chronological or descriptive account, and check that terminology is used precisely and consistently throughout. Deliberately seek out a second perspective or interpretation before writing a critical evaluation, since Criterion D specifically rewards weighing more than one view rather than developing a single interpretation in isolation.

Common mistakes

Stating facts accurately without connecting them to a conceptual framework, which limits Criterion A evidence to recall rather than genuine application. Using sources without evaluating their reliability or relevance to the specific question being investigated – a weakness in any investigation, whichever criterion strand your school’s copy of the subject guide places source evaluation under. Presenting research findings as an unstructured list of facts rather than an organised, referenced argument, which limits Criterion C regardless of how accurate the underlying content is. Treating a single source’s account or a single interpretation as settled fact rather than one perspective among several, which is the most common reason Criterion D evidence fails to reach top band even when the surrounding research is otherwise strong.

Official syllabus

International Baccalaureate Organization, Middle Years Programme Subject Brief – Individuals and Societies, from 2014, (c) 2021 – the same source already cited by the full syllabus guide and the revision notes already on the site. Verified 2026-09-06.