Question

A researcher designs a study so that his subjects are observed for several weeks with no treatment. they are then given a treatment for several weeks. this is followed by several more weeks in which the treatment is withdrawn. finally, the subjects are given a second round of treatments. the effects of the first treatment, the withdrawal of treatment, and the second treatment are measured. this study is typical of a ________ design.

Answer 1

This is called a Single Case Experimental design.

Single case refers to the participant or cluster of participants under investigation. It is the same participants being investigated in one study. The opposite of this would be an experimental group design in which one group is compared with another. Participants in a single case experimental design research project provide their own control data for the purpose of comparison in a within-subject rather than a between-subjects design.