List of research methods

Examples of different research methods
A very wide range of research methods are used in psychology.

Some of the approaches include:
 * Laboratory experimentation
 * Correlational research
 * Cooperative inquiry
 * Naturalistic observation, in which researchers study a population while attempting to change as little as possible.
 * Experimental study, in which researchers change a variable in the group being studied.
 * Field work
 * Psychometrics
 * Prospective study, in which a study samples subjects as the experiment progresses. Cf. Retrospective study.
 * Retrospective study, in which data is collected on subjects' histories at one time. Cf. Prospective study.
 * Longitudinal study, in which subjects are studied over a course of time. Cf. Cross-sectional study.
 * Cross-sectional study, in which a snapshot of the population is assumed to represent individuals as they progress through life. See also Longitudinal study.
 * Meta analysis, in which statistical results from a number of similar research studies can be amalgamated together
 * Qualitative research
 * Computer simulation, in which the behaviour and/or predictions of a psychological theory capable of being modelled by computer can be explored.
 * Action research
 * Participatory action research
 * Discourse analysis
 * Observational method
 * Interview method
 * Structured interview
 * Case study method
 * Correlational method
 * Mass observation
 * Experimental method
 * Empirical method
 * Quasi-empirical method
 * Single-case designs