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Results

#1. Susanna is known for her enthusiasm in helping with household chores. Her mom observes that Susanna folds approximately 15 articles of clothing per minute. Given this rate of behavior, what is Susanna’s average interresponse time (IRT) for folding a single article of clothing, expressed in seconds?

15 seconds

60 seconds

4 seconds

0.25 seconds

Interresponse Time IRT is the measure of the elapsed time between the end of one response and the beginning of the next response To calculate the average IRT when given a rate you can determine how many seconds are in the observed minute and divide by the number of responses In this scenario Susanna folds 15 articles of clothing per minute A minute contains 60 seconds Therefore to find the average time between each folded article you divide the total time by the number of responses 60 seconds 15 articles 4 seconds per article This means on average there are 4 seconds between Susanna completing one folded article and starting the next This calculation demonstrates a fundamental skill in ABA for converting rate data into an average IRT which can be critical for analyzing the tempo of a behavior and informing intervention strategies

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