Includes bibliographical references and index.

Introduction -- The methods used in psychological research -- Choice of topic, measures and research design -- The preliminary stages of research -- Variables and the validity of research designs -- Research designs and their internal validity -- Methods -- Asking questions i: interviews and surveys -- Asking questions ii: measuring attitudes and meaning -- Observation and content analysis -- Data and analysis -- Scales of measurement -- Summarising and describing data -- Going beyond description -- Samples and populations -- Analysis of differences between a single sample and a population -- Effect size and power -- Parametric and non-parametric tests -- Analysis of differences between two levels of an independent variable -- Preliminary analysis of designs with one independent variable with more than two levels -- Analysis of designs with more than one independent variable -- Subsequent analysis after anova or ?2 -- Analysis of relationships i: correlation -- Analysis of relationships ii: regression -- Analysis of relationships iii: logistic regression -- Analysis of covariance (ancova) -- Screening data -- Exploratory factor analysis -- Multivariate analysis -- Meta-analysis -- Bayesian statistics -- Sharing the results -- Reporting research -- Appendixes -- References -- Glossary of symbols -- Author index -- Subject index.