Any bias in selecting subjects for an experiment threatens the _____________ of the experiment.
A) internal validity
B) internal reliability
C) statistical validity
D) statistical reliability

Question

Quizplus · Accepted Answer

Internal validity refers to the accuracy of the experiment in determining a cause-and-effect relationship between the independent and dependent variables. Any bias in subject selection may lead to confounding variables that affect the internal validity of the experiment. Internal reliability, statistical validity, and statistical reliability are not directly affected by subject selection bias.

Any Bias in Selecting Subjects for an Experiment Threatens the _____________