A single-subject research design that manipulates treatments one at a time to determine their effect is the:
A) multiple-baseline design
B) changing criterion design
C) alternating treatments design
D) A-B-A-B design

Question

Quizplus · Accepted Answer

The alternating treatments design involves switching between treatments to compare their effects on the individual. This design is useful when multiple treatments are being evaluated, and it allows for direct comparisons between treatments in a randomized order. The other options listed are also single-subject research designs, but they are not necessarily focused on manipulating treatments one at a time. For example, the multiple-baseline design involves manipulating multiple behaviors or situations at the same time, while the changing criterion design involves gradually changing the criteria for success in a behavior. The A-B-A-B design involves removing and reintroducing a treatment to measure its effect.

A Single-Subject Research Design That Manipulates Treatments One at a Time