Unlike control groups in experimental research, the use of control cases in single-case research
A) cannot aid in assessing the impact of a treatment.
B) is sometimes undesirable because of ethical concerns.
C) cannot be used to rule out alternative explanations for a phenomenon.
D) all of the above

Question

Quizplus · Accepted Answer

Control cases in single-case research can indeed aid in assessing the impact of a treatment and help rule out alternative explanations for a phenomenon. However, their use is sometimes undesirable because of ethical concerns, especially when withholding treatment from a control case could be harmful.

Unlike Control Groups in Experimental Research, the Use of Control