What does each method actually do?
Manipulate, observe, ask, discuss or self-report? Start with the defining feature.
IB Psychology 2027 · Paper 2
Paper 2: compare research methods precisely
One strong comparison is specific about what each method allows a researcher to do. Generic strengths and limitations are much harder to use well.
Start with method pairings
The current PsychExcel resource gives ready-to-write starting points for 21 method pairings. It covers core practical methods and reminds you to adapt every comparison to the exact version of the method named in the question.
ExperimentObservationInterviewFocus groupSurvey / questionnaire
The aim is not to memorise twenty-one paragraphs word for word. Learn the comparison logic, then adapt it to the exact method and question.
Questions to ask before writing a comparison
What type of evidence can it generate?
Think about quantitative and qualitative data, depth, structure and what can be measured.
What claim can the evidence support?
Do not casually turn association into causation. Match the claim to the design.
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Paper 2 library is still growing.
This page currently focuses on the strongest complete resource available rather than padding the site with generic notes.