Quasi-Experimental Designs

Quasi-experimental designs are research methods used to study the effects of an intervention or treatment when random assignment to groups isn’t possible. Unlike true experiments, where participants are randomly assigned, quasi-experiments compare groups that already exist or are naturally formed. Researchers observe these groups before and after the intervention to see if changes occur, attempting to infer causality despite less control over variables. This approach is useful in real-world settings like schools or workplaces, where randomization isn’t feasible but understanding the impact of programs or policies is still important.