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A Psychology Extended Essay investigates a focused question related to behaviour or mental processes, using psychological theories and empirical evidence.
Your essay must demonstrate conceptual understanding, methodological awareness and critical evaluation.
A Psychology EE must:
investigate behaviour or mental processes, not general social phenomena
apply recognised psychological theories, concepts or models
use empirical evidence from studies, findings or meta-analyses
evaluate research methodologies and validity
consider ethical issues where relevant
develop an argument that reflects scientific thinking
Your essay should clearly belong to Psychology, not Global Politics, Sociology or Biology.
A strong topic:
focuses on a specific psychological concept or phenomenon
can be researched through established psychological literature
avoids broad or vague issues
allows for depth of theory and critical evaluation
uses reliable psychological studies
Examples of suitable topic types
factors influencing memory, decision making or attention
explanations of behaviour (for example prosocial behaviour, aggression, conformity)
cognitive processes in bilingual or multilingual learners
evaluation of a psychological model (for example working memory, emotion, motivation)
mental health representations in media when examined through psychological theory
cross cultural comparisons supported by research
Examples of unsuitable topics
personal experiences of mental health
general wellbeing or lifestyle topics
topics requiring clinical diagnosis or therapeutic practice
political, social or educational issues without psychological theory
essays that are purely descriptive or opinion based
Your focus must remain academic and theory driven.
Psychology is an evidence based discipline.
Strong essays draw from:
peer reviewed research
classic and contemporary studies
experimental, observational or correlational research
systematic reviews or meta analyses
theories supported by empirical findings
Avoid:
personal anecdotes
unverified online content
pop psychology, blogs or commercial self help sources
case studies without research grounding
You must interpret evidence, not simply report it.
Your EE does not require you to run your own experiment (you are not allowed), but your analysis must show awareness of methodology.
Depending on your topic, you may draw on:
experimental studies
quasi experimental or natural experiments
correlational research
observational studies
interviews or self report measures (only if used critically and ethically)
cognitive models and simulations
cross cultural or comparative research
You must comment on the strengths and limitations of these methods as part of your evaluation.
Analysis in Psychology should:
explain psychological mechanisms, not just describe them
use theory to interpret research findings
show links between variables and concepts
synthesise findings across studies
remain tightly focused on answering the research question
You are expected to go beyond summarising studies by explaining why findings matter.
Evaluation may include:
methodological strengths and weaknesses of key studies
issues of validity, reliability and sampling
cultural and ethical considerations
alternative theoretical explanations
gaps in research
overall strength of evidence
Evaluation must be continuous, not saved for the conclusion.
Avoid:
topics that drift into sociology or politics
no clear psychological theory
essays that summarise studies without analysis
misusing terminology
treating correlation as causation
relying on a single study
choosing a topic tied to personal experience
using non academic sources
These issues are highlighted frequently in examiner comments.
Here are examples of strong, focused Psychology EE questions:
How effectively does cognitive load theory explain language learning difficulties in bilingual adolescents?
To what extent does social media use influence working memory performance in teenagers?
How well does the dual process model account for decision making in high stress situations?
To what extent do cultural factors influence the expression of depression in East Asian adolescents?
How accurately does attachment theory explain differences in emotional regulation among young adults?
Each question is specific, theory based and answerable using research.
Please note, the subject reports and examples are based on the previous iteration of the Extended Essay.