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

Question

Quizplus · Accepted Answer

One common criticism of single-case experimental designs is that they may decrease external validity, or the ability to generalize the results to other individuals or situations. This is because these designs typically involve studying only one individual or a small number of individuals with a specific condition or treatment, which may not accurately represent the experiences of the larger population. Single-case designs do not necessarily decrease internal validity, which refers to the extent to which the study is able to control for extraneous variables and establish a cause-and-effect relationship, or reliability, which refers to the consistency of the findings.

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