Quasi‐Experimental Research Methods

Quasi‐experimental research methods encompass a wide variety of research designs that, compared to true experiments, do not involve randomized selection of research participants. This wide variety of designs can include single group assessments, treatment and control group comparisons, assessments of behavior change over time, and observations of direct effects of exposure to social stimuli. There are many advantages and disadvantages to quasi‐experimental methods that must be taken into account by researchers. These designs can be effectively used in the study of complex behaviors, policies, programs, and other factors related to crime and deviance.