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Results

#1. A research team is observing instances of a target behavior. Three independent observers record 15 instances of the behavior during a session. However, a video recording of the same session, when carefully reviewed by a single expert, reveals that only 10 instances of the behavior actually occurred. The research team was tasked with measuring the number of times the target behavior occurred. Which of the following statements most accurately describes the data collected by the three observers?

The data is both valid and accurate.

The data is valid but not accurate.

The data is accurate but not valid.

The data is neither valid nor accurate.

This scenario directly tests the understanding of validity and accuracy in data measurement Validity refers to the extent to which a measurement system measures what it purports to measure In this case the observers were instructed to measure instances of the target behavior and they did measure instances of the behavior so their measurement system is valid Accuracy on the other hand refers to the degree to which observed values match the true state or true value of the phenomenon Since the observers recorded 15 instances but the true count was 10 their data is not accurate because it does not reflect the true value of the behavior Therefore the data is valid they measured what they intended to but not accurate their measurement did not reflect the true occurrence

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