Measurement validity and reliability: Measurement quality and procedural integrity. | BCBA Practice Question

Question

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

A BCBA reviews ABC data from three outings for grabbing preferred items. The next decision depends on measurement validity and reliability. What should the BCBA do? The case file includes 4 recent sessions, 3 implementers, and 1 setting.

Check measurement quality, observer agreement, and procedural integrity before making a major decision in relation to adolescent's grabbing preferred items

Correct answer

Rely on care team's report alone and stop collecting direct evidence

Change the intervention immediately based on the concern alone

Continue unchanged and ignore the new contextual information

Explanation

Answer A

The clue is the combination of ABC data from three outings, grabbing preferred items, and the required task: Measurement validity and reliability. The case file includes 4 recent sessions, 3 implementers, and 1 setting. Check measurement quality, observer agreement, and procedural integrity before making a major decision in relation to adolescent's grabbing preferred items is best because it answers that clue through measurement quality and procedural integrity 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

Trap

Common trap

Stakeholder input matters, but direct data, context, and integrity checks are still needed for a defensible answer.

If you missed it, review Internal validity and confounds

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

Why the other choices are weaker

Choice B

Stakeholder input matters, but direct data, context, and integrity checks are still needed for a defensible answer.

Choice C

This is weaker because it skips the assessment, integrity, or decision rule needed before changing procedures.

Choice D

Ignoring relevant data or context prevents a defensible behavior-analytic decision.

Study tags

Measurement quality and procedural integrityMeasurement validity and reliabilityvalidityreliability

Related concept pages

Turn this into a study plan

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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 quality and procedural integrity, Measurement validity and reliability, validity, reliability.

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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