Comparison of momentary time sampling procedures within a clinical setting

Document Type

Thesis

College

College of Arts and Sciences

Department

Psychology

Degree

M.S. Applied Behavior Analysis

Date Completed

2013

First Committee Member

Ahearn, William

Second Committee Member

Bourret, Jason

Third Committee Member

Thompson, Rachel

Abstract

"Three children diagnosed with autism were videotaped for 7, 60-min sessions during their daily academic instruction. From each videotaped session, data were collected on the occurrence of stereotypy through a continuous duration record and momentary time sampling (MTS) methods of various intervals. MTS data were collected at 20 s, 5 min, 10 min, 15 min, and 30 min interval lengths. Each MTS method was compared to the continuous duration record, and measurement error was obtained to assess the accuracy of the method (and interval length). In general, measurement error increased as MTS interval lengths increased. Data collected with MTS intervals of 10 min or less closely approximated the continuous duration record. When averaged across 7 sessions, all time sampling intervals closely approximated the average continuous duration record."

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