In Fred's study, there are three levels of only one independent variable that also happens to be a participant variable. His study is:
A) a quasi-experimental design.
B) a higher order factorial design.
C) a single-case experimental design.
D) a two by two factorial design.

Question

Quizplus · Accepted Answer

A quasi-experimental design is used when random assignment is not possible or practical, but there is still an independent variable being manipulated. The fact that there is only one independent variable that is also a participant variable indicates that random assignment is not possible, making this study fitting for a quasi-experimental design. The other options do not fit the description of the study.

In Fred's Study, There Are Three Levels of Only One