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Results

#1. A BCBA designs a discontinuous measurement procedure for a technician, instructing them to use Play Check recording with 15-second intervals. The target behavior is on-task behavior within a group setting. The technician observes and reports the following durations of on-task behavior for the group during consecutive 15-second intervals 12 seconds, 4 seconds, 14 seconds, 1 second, 15 seconds, and 5 seconds. Based on this information and the principles of Play Check, how many intervals should the technician record on-task behavior as occurring?

6 intervals

5 intervals

1 interval

Cannot be determined from the information provided.

Play Check Planned Activity Check is a variation of momentary time sampling that is used to measure behavior in a group In both momentary time sampling and Play Check the observer records whether the target behavior is occurring only at the very end of a predetermined interval The duration for which the behavior occurs within the interval is irrelevant for this measurement system For example if ontask behavior occurred for 14 seconds but stopped just before the 15second mark it would not be recorded Conversely if it occurred for only 1 second but that 1 second coincided with the 15second mark it would be recorded as occurring The information provided durations within the intervals does not indicate whether the behavior was occurring at the precise moment each 15second interval ended Therefore based on the principles of Play Check it is impossible to determine how many intervals should be recorded as ontask behavior from the given data

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