Each of the following is required in a true experiment, EXCEPT:
A) experimental control.
B) a pretest and posttest measurement.
C) random assignment.
D) temporal precedence.

Question

Quizplus · Accepted Answer

A true experiment requires experimental control to manipulate the independent variable, random assignment to ensure that any differences between and within the groups are not systematic at the outset of the experiment, and temporal precedence to establish a cause-and-effect relationship. However, a pretest and posttest measurement is not strictly required for an experiment to be considered true; it's a design choice that can add to the design's complexity and robustness but is not a necessity for all experimental designs.

Each of the Following Is Required in a True Experiment