Question

How is experimental control demonstrated in single-subject designs, and in how many ways?

Answer 1

Experimental control in single-subject designs is demonstrated through the use of an experimental group and a control group, and there are two ways to accomplish this: the A-B Design and the A-B-A Design.

Step-by-step explanation:

In single-subject designs, experimental control is demonstrated by having both an experimental group and a control group. The experimental group is exposed to the experimental manipulation, while the control group is not.

There are two ways to demonstrate experimental control in single-subject designs:

1. A-B Design: In this design, the baseline phase (A) is observed first, followed by the experimental phase (B). The same individual serves as their own control, allowing for direct comparison of their behavior before and after the intervention.
2. A-B-A Design: This design adds a second baseline phase after the experimental phase to further establish the effect of the intervention. It involves observing the behavior in the baseline phase (A), introducing the experimental phase (B), and then returning to the baseline phase (A) to see if the behavior returns to its original state.