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Results

#1. Joe, a newly trained RBT, is assigned to track the target behavior of ‘elopement’ for a client. On the first day, he accurately records six instances of elopement. However, on the second day, he records five instances of crying, and on the third day, four instances of aggression. Considering the purpose of Joe’s data collection, what critical quality is most notably lacking in his overall data collection process across these three days?

Accuracy

Validity

Reliability

Consistency

Validity refers to the extent to which a measurement system measures what it is supposed to measure In this scenario Joe was instructed to measure elopement but he subsequently measured crying and aggression While his recordings of crying and aggression might be accurate meaning he correctly recorded what happened they are not valid because he is not measuring the target behavior elopement that he was assigned to track Therefore his data collection lacks validity Accuracy means the data reflects the true count or dimension of the behavior Reliability refers to the consistency of measurement over time where repeated measurements of the same event yield similar results Consistency while desirable is not one of the fundamental psychometric properties of measurement in ABA accuracy validity reliability

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