Practice question
Measurement, Data Display, and Interpretation

Temporal-dimension measurement: Measurement system selection.

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

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Question

Difficulty: medium. Skill: apply. Type: data interpretation.

A BCBA reviews caregiver notes plus one direct observation for dropping to the floor when demands are presented. The next decision depends on temporal-dimension measurement. What should the BCBA do? The case file includes 12 recent sessions, 3 implementers, and 1 setting.

A
Choose the measurement system that matches the behavior dimension and decision question in relation to child's dropping to the floor when demands are presented

Correct answer

B
Treat the most recent data point as proof of the final conclusion
C
Base the decision on the descriptive label for dropping to the floor when demands are presented and bypass temporal-dimension measurement
D
Use a familiar protocol even though it does not address measurement system selection

Explanation

Answer A

The clue is the combination of caregiver notes plus one direct observation, dropping to the floor when demands are presented, and the required task: Temporal-dimension measurement. The case file includes 12 recent sessions, 3 implementers, and 1 setting. Choose the measurement system that matches the behavior dimension and decision question in relation to child's dropping to the floor when demands are presented is best because it answers that clue through measurement system selection instead of treating the scenario as a generic behavior problem. On exam items like this, name the decision point first, then eliminate options that rely on one report, a label, a familiar protocol, or an action that skips the relevant data check.

Why this question is hard

Clue
Key scenario clue

The clue is the combination of caregiver notes plus one direct observation, dropping to the floor when demands are presented, and the required task: Temporal-dimension measurement. The case file includes 12 recent sessions, 3 implementers, and 1 setting.

Trap
Common trap

A single point rarely supports a strong conclusion without considering trend, variability, and context.

Next
If you missed it, review Measurement system selection

Then answer a few related scenarios before moving back to broad practice.

Why the other choices are weaker

B
Choice B

A single point rarely supports a strong conclusion without considering trend, variability, and context.

C
Choice C

This is weaker because the label does not answer the Temporal-dimension measurement decision point or test Measurement system selection.

D
Choice D

A familiar protocol is not enough unless it matches the assessed variables and the current decision question.

Study tags

Measurement system selectionTemporal-dimension measurementfrequencyrate

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Related study guides

GuideDistractor patternsUse this if the wrong answer sounded plausible.GuideMissed-question reviewUse this if you want to turn the miss into a study rule.GuideScore plateau guideUse this if similar mistakes keep repeating.

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Question FAQ

What BCBA domain does this question cover?

This practice question is tagged to Measurement, Data Display, and Interpretation. It also includes study tags for Measurement system selection, Temporal-dimension measurement, frequency, rate.

How should I review this practice question?

Answer the scenario before reading the explanation, compare your reasoning with the correct answer, then review why the distractors are weaker.

Is this an official BACB exam question?

No. This is an original study question for BCBA Scenario Tutor and is not an official BACB exam item.

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