The key difference between an experimental and a quasi-experimental study is that the quasi-experimental study ________.
A) does not appear to be an experimental study, but it has all of the characteristics of one
B) contains an independent variable
C) has multiple dependent variables
D) does not involve random assignment

Question

Quizplus · Accepted Answer

The key difference between an experimental and a quasi-experimental study is the absence of random assignment in quasi-experimental studies. Random assignment is a crucial component of experimental research, and its absence in quasi-experimental studies makes it impossible to establish causal relationships between the independent and dependent variables. Therefore, the correct answer is D, which emphasizes that quasi-experimental studies do not involve random assignment.

The Key Difference Between an Experimental and a Quasi-Experimental Study