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        | A measure of the total extent of time in which a behavior occurs |  | 
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        | Measurement procedure for obtaining a tally or count of the number of times a behavior occurs. |  | 
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        | A ratio of count per observation of time |  | 
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        | A measure of temporal locus; elapsed time between 2 successive responses. |  | 
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        | The force or intensity with which a response is emitted. |  | 
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        | A measurement method in which the presence of absence of behaviors are recorded at precisely specified time intervals (contrast with interval recording) |  | 
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        | Partial Interval Recording |  | Definition 
 
        | A time sampling method for measuring behavior in which the observation period is divided into a series of brief time intervals (typically 5 to 10 seconds). |  | 
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        | A ratio formed by combining the same dimensional quantities (such as count or time) expressed as a number of parts per 100 |  | 
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        | A measure of temporal locus;elapsed time from the onset of a stimulus to the initiation of a response. |  | 
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        | A measurement of the presence or absence of behavior within specific time intervals. |  | 
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        | The physical form or shape of a behavior. |  | 
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        | A special form of event-recording; a measure of the # of responses or practice opportunities needed for a person to achieve a preestablished level of accuracy. |  | 
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 | Definition 
 
        | A time sampling method for measuring behavior in which the observation period is divided into a series of time intervals (5 to 15 sec.). At end of interval, did target behavior occur the entire time? -- tends to underestimate the proportion of the observation period that many behaviors actually occurred. |  | 
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