Matched pairs design is time-consuming and difficult to do accurately
Quasi-experimental designs seeks to evaluate the casual relationships between variables but without full control over the independent variable
Non-equivalent control group design is a quasi-experimental design where two groups of participants are selected that are similar in every way except for the independent variable and one group receives experimental treatment while the other is a control
Interrupted Time-Series design is a quasi-experimental design where data is collected on the dependent variables over a period of time both before and after an intervention to determine whether there was a significant change
Pretest-Posttest design is a quasi-experimental design where the dependent variable is measured before and after an intervention (without a control group)