Which of the following is a key feature of an experimental study?
A)Controls for cohort effects
B)Nonrandom assignment
C)Absence of a control group
D)An independent variable

Question

Quizplus · Accepted Answer

An independent variable is a key feature of an experimental study, as it is the variable that is manipulated by the researcher in order to observe its effect on the dependent variable. The other options (A, B, and C) are not key features of experimental studies: controlling for cohort effects is a potential issue but not a defining feature, nonrandom assignment is actually a disadvantage for experiments as it can introduce confounding variables, and the presence of a control group is important for some types of experiments but is not required for all experiments to be considered experimental.

Which of the Following Is a Key Feature of an Experimental