Experimental design

Experimental design is true experiment, where we try to know the effect and causal relationship in the study. In this design we assign our sample using random methods. There are at least one experimental group and one control group. Experimental designs are the most rigorous of all research designs and are considered the "gold standard" against which all other research designs are judged

Quasi experimental design, is based on observational studies, in this design we can manipulate the independent variable, but we select our sample through non- randomized method. In this design we don't eliminate the problem of confounding variables. This design is more likely to c