At what point is a phase change appropriate?
A) After the first observation in the current phase
B) After at least ten observations in the current phase
C) When the participant shows the first response to the treatment
D) When the participant shows a clear and stable pattern of behavior

Question

Quizplus · Accepted Answer

A phase change is appropriate when the participant shows a clear and stable pattern of behavior. This ensures that any observed changes in behavior can be attributed to the treatment and not to other factors. A single observation is not sufficient to establish a stable pattern, and a minimum of ten observations may not be enough to detect a true pattern. Waiting until the participant responds to the treatment may result in missing important changes in behavior that occur before the response. Therefore, the best option is to wait until a clear and stable pattern emerges before making a phase change.

At What Point Is a Phase Change Appropriate