Practice question
Experimental Design

Select a multiple-baseline design when reversal is inappropriate.

Original BCBA scenario practice question with answer explanation and wrong-choice notes.

Question

Difficulty: easy. Skill: recognize. Type: experimental design critique.

A BCBA evaluates teaching matching pictures across three routines in a community outing. Withdrawing the skill after mastery would be impractical and potentially unsafe. Which design best fits? The BCBA is checking whether the response matches the referral concern.

A
AB design with no replication
B
Reversal design with treatment withdrawal
C
Multiple baseline across routines

Correct answer

D
Scatterplot only

Explanation

Answer C

Multiple baseline designs can show experimental control by staggering intervention without withdrawing an effective skill.

Why the other choices are weaker

A
Choice A

An AB design provides weak evidence because it lacks replication of effect.

B
Choice B

Withdrawing a useful or safety-related skill may be inappropriate.

D
Choice D

A scatterplot can guide assessment but does not demonstrate experimental control.

Study tags

Multiple BaselineExperimental DesignAlternating Treatments

Practice interactively

Try more BCBA scenario questions in the interactive practice mode, then use review tools to track missed domains and flagged items.

Start practiceMore free questions