2.4 Research methodology

• Understand that data is represented and analysed in different forms depending on design and data type.

• Interpret tables, graphs and research results.

• Analyse and interpret mean, median, mode, range, standard deviation and semi-interquartile range.

• Interpret common tests of difference and relationship, including chi-square, t-tests, Mann-Whitney, Wilcoxon and correlations.

• Understand effect size and statistical significance.

• Understand stages of thematic analysis for finding patterns in textual data and grouping them into research-relevant themes.

• Explain strategies for ensuring credibility in psychological research.

• Differentiate experiments, observations, surveys, interviews, correlational studies and case studies.

• Select suitable methods for psychological questions and evaluate advantages, disadvantages, ethics and external variables.

• Explain advantages and disadvantages of self-selected, opportunity, stratified, random and snowball sampling.