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Research methods

Research methods

This section of the site focuses on how psychologists carry out their research.  This includes both quantitative methods (experiments, surveys, correlations) and qualitative research (questionnaires, interviews, observations, and case studies).

The goal of this introductory unit is to learn the language of psychology and begin the development of a “critical thinking toolbox” which you will use throughout the course.

Where are you assessed on research methods?

The concept of how psychologists do their research is an essential part of all facets of the IB Psychology curriculum. Here is an outline of where the questions about research may be asked:

Paper 1: Students may be asked to discuss a research method used in a particular approach to studying behaviour - that is, biological, cognitive, or sociocultural. Students may also evaluate the research methods used in a study in order to show critical thinking.

Paper 2: Students may be asked to discuss a research method used in a particular topic - for example, Discuss research used in the study of one health problem. Students may also evaluate the research methods used in a study in order to show critical thinking.

Paper 3: This paper is HL only. It is focused on both quantitative and qualitative research.

Internal Assessment: Students are required to carry out an experimental study.

Essential questions

  1. What considerations must a psychologist make when setting up a research experiment?
  2. What are the strengths and limitations of an experimental approach to studying human behaviour?
  3. How can statistics be applied to interpret data?
  4. What is the importance of a representative sample - and how can one be obtained?

Key skills

  • Applying statistics to test the significance of data
  • Data representation
  • Writing and testing a hypothesis
  • Discussing findings and methodology in a research report