Includes bibliographical references and index.

The methods used in psychological research -- The preliminary stages of research -- Variables and the validity of research designs -- Research designs and their internal validity -- Asking questions I: interviews and surveys -- Asking questions II: measuring attitudes and meaning -- Observation and content 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 IV with more than two levels -- Analysis of designs with more than one independent variable -- Subsequent analysis after ANOVA or cð2 -- Analysis of relationships I: correlation -- Analysis of relationships II: regression -- ANCOVA -- Screening data -- Multivariate analysis -- Meta-analysis -- Reporting research.