Board Certified Behavior Analyst (BCBA) — Question 25

Tony is supervising a work crew at the post office. Every day, his clients are supposed to check each waste bin and empty those that contain trash. Tony takes data on the number of waste bins emptied by the crew. In order to report data in terms of percentage of occurrence Tony MUST also know:

Answer options

• A. that some waste bins contained trash.
• B. how many waste bins contained trash.
• C. how many waste bins were in the office.
• D. This behavior is not amenable to percent of occurrence reporting.

Correct answer: B

Explanation

The correct answer is B because knowing the number of bins that contained trash allows Tony to calculate the percentage of bins emptied. Option A is insufficient, as it only confirms that some bins had trash but not the quantity. Option C does not provide relevant information for percentage calculation, and option D is incorrect as occurrence can be reported in percentage.