BCBA Free Dumps Study Materials
Question 6: Three boys with autism, ages 7-10 years old, served as participants in a study.
During baseline, staff used response blocking when five instances of aggression or head-banging
occurred within 10 seconds, until attempts ceased for 1 minute.
During baseline and treatment, each occurrence of aggression and head-banging was recorded daily
and converted to the number of responses per hour.
Treatment comprised a differential reinforcement of incompatible behavior (DRI) schedule coupled
with response blocking after every head-banging or aggression.
The staff initially applied the treatment to head-banging, while continuing to take a baseline on
aggression.
After noting treatment effects on head-banging, the staff then applied the treatment to aggression.
In this scenario, how was direct replication shown?
A. Baseline and intervention conditions were included.
B. A baseline condition was implemented.
C. A changing criterion design was used wherein the criterion for reinforcement was gradually
changed over time.
D. The intervention was implemented in a staggered fashion across target behaviors after the initial
baseline.
Correct Answer: D