BCABA Experimental Design and Research Methods

Question 1

Which experimental design involves repeatedly alternating between baseline and treatment conditions to demonstrate experimental control?

Accepted Answer

Reversal (ABAB) design

Answer

Multiple baseline design

Answer

Changing criterion design

Answer

Alternating treatments design

Question 2

In a multiple baseline design across behaviors, a functional relation is demonstrated when:

Accepted Answer

Behavior changes only when the intervention is introduced to each successive behavior

Answer

All baselines change simultaneously

Answer

One behavior changes before the intervention

Answer

Baselines remain stable throughout the study

Question 3

The alternating treatments design (ATD) is most useful for comparing:

Accepted Answer

Two or more treatments within the same participant

Answer

One treatment across multiple participants

Answer

A treatment against a no-treatment control

Answer

Pre and post intervention outcomes

Question 4

In single-subject research, 'experimental control' is demonstrated when:

Accepted Answer

Behavior changes reliably correspond to changes in the independent variable

Answer

The participant improves over time

Answer

IOA exceeds 80%

Answer

The behavior reaches the criterion level

Question 5

A changing criterion design is particularly well suited for:

Accepted Answer

Shaping behavior toward a terminal goal in graduated steps

Answer

Comparing two interventions

Answer

Reversing an unwanted behavior

Answer

Testing generalization across settings

Question 6

Baseline logic in single-subject research serves to:

Accepted Answer

Predict what behavior would have been without treatment

Answer

Measure treatment fidelity

Answer

Calculate social validity

Answer

Assess IOA