A psychology professor is interested in whether implementing

A psychology professor is interested in whether implementing weekly quizzes improves student learning. She decides to use the weekly quizzes in one section of her introductory psychology class and not to use them in another section of the same course. Which type of quasi- experimental design is described by this study? Identify possible confounds for this study.

QUESTION: Is using a Nonrandomized Control Group Pretest-Posttest Quasi-Experiment Design for this study a suitable recommendation?

Solution

There are a number of quasi-experimental designs, including the difference in differences, non-equivalent control groups, regression discontinuity, case-controlled, and panel analysis designs. She decides to use the weekly quizzes in one section of her introductory psychology class and not to use them in another section of the same course that means the design would involve the one section without the quizzes (control group) and the another section with the quizzes(treatment group ) . In this design, you would assign a pretest to gather data from both groups before implementing the quizzes, then a post-test on both groups after you have finished teaching the lesson. A possible hypothesis could be that the quizzed group (pretest) would do better on the post-test because they have had more interaction with the material through assessment. So, we can use non-equivalent group design.

Here random assignment to conditions cannot be accomplished and groups are nonequivalent before the experiment begins. So, we can use nonrandomized Control Group Pretest-Posttest Quasi-Experiment Design for this study a suitable recommendation