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Results

#1. During a classroom assessment, the teacher provides the instruction, ‘Okay, Timmy, begin your exam now.’ Timmy is observed to pause for 20 seconds after this instruction before he picks up his pencil and starts to write his name on the exam paper. He then proceeds to answer the exam questions, spending an average of two minutes per question, and completes the entire exam in a total of 30 minutes. Based on this scenario, which of the following best represents the measurement of latency?

A. The total of 30 minutes that Timmy took to complete the entire examination from start to finish.

B. The average of two minutes Timmy spent answering each individual question throughout the exam.

C. The 20-second interval between the teacher’s verbal instruction and Timmy’s initiation of writing on the paper.

D. The time Timmy spent sitting quietly at his desk before the teacher delivered the instruction to begin the exam.

Latency is a fundamental dimension of behavior measurement defined as the time between the presentation of a stimulus specifically a discriminative stimulus or SD and the onset or start of the target response In this example the SD is the teachers instruction Okay Timmy begin your exam now The initiation of the response is when Timmy picks up his pencil and starts to write The 20second interval precisely measures the time elapsed between this SD and the start of Timmys response making it the correct representation of latency The 30 minutes represent the total duration of the behavior and the two minutes per question represent the average duration of individual responses The time before the SD is not considered latency

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