Experimental and Quasi-experimental Research

Experimental and quasi-experimental research are methods where one or more independent variables are manipulated and applied to one or more dependent variables to measure their effect on the latter. The impact of the independent variables on the dependent variables is usually observed and recorded over time. The experimental research is based on the comparison between two or more groups with a straightforward logic, which may, however, be challenging to execute (Ross & Morrison, 2004).

Useful references for Experimental and Quasi-experimental Research: Kazdin(2016) Ross & Morrison (2004); Sheremeta (2018)