One important difference between a typical case study and the single-case experiment is that the single-case experiment attempts to
A) increase the number of confounding variables.
B) improve external validity.
C) improve internal validity.
D) utilize a single strategy to reduce confounds.

Question

Quizplus · Accepted Answer

The single-case experiment is designed to improve internal validity by controlling for confounding variables and isolating the effect of the independent variable on the dependent variable. It does this by using a single subject or a small group of subjects and manipulating the independent variable in a systematic way to test its effect on the dependent variable. The typical case study, on the other hand, does not involve experimental manipulation of variables and may not have the same level of control over extraneous factors.

One Important Difference Between a Typical Case Study and the Single-Case