quasi experimental research

Quasi experimental research lacks-

• Random Assignment

• Statistical analysis

• Conditions

• Dependent variables.

What is the primary disadvantage of using quasi experimental design-

• Internal validity is compromised

• External validity is compromised.

• There is none.

• Relaibility is compromised.

Answer explanation

Internal validity refers to the degree to which a researcher can be sure that the treatment was responsible for the change in the experimental group.If the researcher does not start with equivalent groups, then the researcher cannot be sure that the treatment was the sole factor causing change. Weaknesses of quasi-experimental design may contribute to the change. Therefore, not using random sampling methods to construct the experimental and control groups, increases the

A quasi-experimental research design that looks much like an experiment but lacks randomized assignment of subjects to treatment conditions is known as _____.

• a. Interrupted Time Series Design

• b. Repeated Measure Design

• c. Nonequivalent Control Group Design

• d. None of the above

Would you use a questionnaire in experimental research and Quasi-experimental Methods?

What is the difference between a true experimental design and a quasi-experimental design?

Is a longitudinal study a quasi-experimental design?

Which is a common research design?

• a. Non-experimental design

• b. Quasi-experimental design

• c. Experimental design

• d. All responses are correct.

The primary characteristic of quasi-experiments is that-

• - research participants are not randomly assigned to the experimental and control groups.

• - they do not include pretests.

• - they include a pretest only for the experimental group.

• - analysis of covariance cannot be used to analyze the research data

Which of the following is true of quasi-experiments?

• a) The research has no control group.

• b) Quasi-experiments are used more often than experiments

• c) Quasi-experimental helps the researcher to make inferences about the possible existence of a cause and effect relationship of the treatment.

• d) All of the above statements are true

Does the lack of random participant assignment in quasi-experimental design undermine experimental data? why or why not?