Among the following, which is most relevant to ensuring that any differences one obtains after the experimental manipulation of a study have been produced only by that manipulation?
A) Statistical interactions
B) External validity
C) Construct validity
D) Experimenter control

Question

Quizplus · Accepted Answer

Experimenter control is the manipulation of the independent variable with control over all other variables. This helps ensure that any differences observed in the dependent variable are solely due to the manipulation and not due to other confounding factors. Options A, B, and C are also important aspects of experimental design, but not as directly related to ensuring internal validity.

Among the Following, Which Is Most Relevant to Ensuring That