The major threat to the external validity of single-case experiments is
A) the use of one or a few cases in most single-case experiments as a basis for generalizing to a population.
B) the small number of observations during the course of a typical single-case experiment.
C) the focus on observing behavior rather than the research participant's cognitions during the course of most single-case experiments.
D) the use of a withdrawal procedure rather than a reversal procedure in the second baseline of most single-case experiments.

Question

Quizplus · Accepted Answer

The major threat to the external validity of single-case experiments is the use of one or a few cases as a basis for generalizing to a larger population. This limited sample size makes it difficult to ensure that findings are applicable beyond the specific cases studied.

The Major Threat to the External Validity of Single-Case Experiments