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Research Methodology	2
Sampling	2
Adults	1
Behavior Patterns	1
Data Collection	1
Elementary Education	1
Estimation (Mathematics)	1
Evaluation Methods	1
Institutionalized Persons	1
Measurement Techniques	1
Microcomputers	1
Multiple Disabilities	1
Naturalistic Observation	1
Observation	1
Physical Disabilities	1
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Severe Mental Retardation	1
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Journal of Applied Behavior…

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Mudford, Oliver C.	1
Saudargas, Richard A.	1
Zanolli, Kathleen	1

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Journal Articles	2
Reports - Evaluative	2

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Momentary Time Sampling as an Estimate of Percentage Time: A Field Validation.

Peer reviewed

Saudargas, Richard A.; Zanolli, Kathleen – Journal of Applied Behavior Analysis, 1990

This study comparing momentary time sampling against the real time obtained with handheld computers confirmed laboratory findings that short-elementary time sampling estimates percentage time accurately for a wide range of behavior frequencies and durations, and suggested that observers using momentary time sampling in a natural setting are able…

Descriptors: Data Collection, Elementary Education, Estimation (Mathematics), Measurement Techniques

The Representativeness of Observational Samples of Different Durations.

Peer reviewed

Mudford, Oliver C.; And Others – Journal of Applied Behavior Analysis, 1990

The representativeness of behavioral observation samples with durations of less than the whole time of interest was investigated with five profoundly mentally retarded physically handicapped adults in an institutional setting. It was found that the session representativeness was a function of the relative duration of the behavioral categories and…

Descriptors: Adults, Behavior Patterns, Evaluation Methods, Institutionalized Persons