Experimental Method: Types of experiment, laboratory and field experiments; natural and quasi-experiments.
Observational Techniques: Types of observation: naturalistic and controlled observation; covert and overt observation; participant and non-participant observation.
Self-report Techniques: Questionnaires; interviews, structured and unstructured.
Correlations: Analysis of the relationship between co-variables. The difference between correlations and experiments.
ContentAnalysis and CaseStudies.
Aims: stating aims, the difference between aims and hypotheses.
Hypotheses: directional and non-directional.
Sampling: the difference between population and sample; sampling techniques including: random, systematic, stratified, opportunity and volunteer; implications of sampling techniques, including bias and generalisation.
Questionnaire construction, including use of open and closedquestions; design of interviews.
Variables: manipulation and control of variables, including independent, dependent, extraneous, confounding; operationalisation of variables.
Control: randomallocation and counterbalancing, randomisation and standardisation.
Demandcharacteristics and investigatoreffects.
Ethics, including the role of the BritishPsychologicalSociety’s code of ethics; ethical issues in the design and conduct of psychological studies; dealing with ethical issues in research. The role of peerreview in the scientificprocess. The implications of psychologicalresearch for the economy.
Reliability across all methods of investigation. Ways of assessing reliability: test-retest and inter-observer; improving reliability.
Types of validity across all methods of investigation: face validity, concurrent validity, ecological validity and temporal validity. Assessment of validity. Improving validity.
Features of science: objectivity and the empirical method; replicability and falsifiability; theoryconstruction and hypothesistesting; paradigms and paradigmshifts. Reporting psychological investigations. Sections of a scientific report: abstract, introduction, method, results, discussion and referencing.
Quantitative and qualitative data; the distinction between qualitative and quantitative data collection techniques.
Primary and secondary data, including meta-analysis.
Descriptivestatistics: measures of centraltendency – mean, median, mode; calculation of mean, median and mode; measures of dispersion; range and standarddeviation; calculation of range; calculation of percentages; positive, negative and zerocorrelations.
Presentation and display of quantitative data: graphs, tables, scattergrams, bar charts, histograms.
Distributions: normal and skewed distributions; characteristics of normal and skewed distributions.
Analysis and interpretation of correlation, including correlationcoefficients.
Levelsofmeasurement: nominal, ordinal and interval.
Contentanalysis and coding.Thematicanalysis.
Introduction to statisticaltesting; the signtest.
Probability and significance: use of statistical tables and criticalvalues in interpretation of significance; Type I and Type IIerrors.
Factors affecting the choice of statistical test, including level of measurement and experimental design. When to use the following tests: Spearman’s rho, Pearson’s r, Wilcoxon, Mann-Whitney, related t-test, unrelated t-test and Chi-Squaredtest.