Single-case experimental designs are sometimes criticized because they tend to
A) always involve a single case.
B) decrease internal validity.
C) have lower external validity.
D) have very poor reliability estimates.

Question

Quizplus · Accepted Answer

Single-case experimental designs usually involve a small number of participants or a single case, which makes it difficult to generalize findings to the larger population. This results in lower external validity. However, it is not necessarily true that they have poor reliability estimates or decreased internal validity.

Single-Case Experimental Designs Are Sometimes Criticized Because They Tend to