Single-subject design in research studies one or a few subjects closely, rather than studying groups. Multiple baseline design resolves common problems associated with other single-subject designs, but has its own limitations. Which of the following is a problem associated with multiple baseline design?
A)Time investment
B)Ethical concerns
C)Threat of history
D)Failure of variable to return to baseline

Question

Quizplus · Accepted Answer

Time and financial investment are problems associated with multiple baseline design. AB design carries the threat of history-it is hard to determine whether intervention or another event caused change. Ethical concerns and the failure of a dependent variable to return to baseline are both problems associated with ABAB design.

Single-Subject Design in Research Studies One or a Few Subjects