BCABA Measurement and Data Collection 3

Question 1

Partial-interval recording tends to _______ the true occurrence of a behavior.

Accepted Answer

Overestimate

Answer

Because the behavior only needs to occur once during the interval to be scored, partial-interval recording often overestimates behavior prevalence.

Question 2

When a BCABA graphs cumulative records, an accelerating slope indicates:

Accepted Answer

Behavior is increasing in rate over time

Answer

On a cumulative graph, a steeper slope reflects a higher rate of responding because each response adds to the running total.

Question 3

Which reliability measure examines agreement only for intervals in which neither observer recorded the behavior?

Accepted Answer

Unscored-interval IOA

Answer

Unscored-interval IOA considers only intervals where both observers did not score the behavior, making it sensitive for high-rate behaviors.

Question 4

A scatter plot in ABA is used primarily to identify:

Accepted Answer

Temporal patterns of behavior

Answer

Scatter plots display when during the day or across activities a behavior tends to occur, revealing temporal or contextual patterns.

Question 5

The minimum generally accepted IOA percentage for published ABA research is:

Accepted Answer

80%

Answer

An IOA of 80% or above is the widely accepted minimum threshold to demonstrate adequate measurement reliability in ABA research.

BCABA - Board Certified Assistant Behavior Analyst Practice Test