What is a quasiexperimental design How is it different from

What is a quasi-experimental design? How is it different from an ex post facto design? Describe one weakness of the quasi-experimental design.

Solution

A quasi-experiment is an empirical study used to estimate the causal impact of an intervention on its target population. This type of research shares similarities with the traditional experimental design, but they specifically lack the element of random assignment to treatment or control. Quasi-experimental designs allow the researcher to control the assignment to the treatment condition, by using some criterion other than random assignment