In the case of _____, one wants to know whether the experimental methods are free from biases and logical errors that may render the results suspect.

A) internal validity
B) external validity
C) face validity
D) reliability

Internal Validity

The degree to which a study establishes a trustworthy cause-and-effect relationship between a treatment and an outcome.

Experimental Methods

A research methodology in psychology and other sciences involving the manipulation of variables to determine cause and effect relationships.

Biases

Systematic patterns of deviation from norm or rationality in judgment, whereby inferences about other people and situations may be drawn in an illogical fashion.