Stability of Parameter Estimates in the Split Population Exponential Distribution.

Miley, Alan D.

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ERIC Number: EJ193498

Record Type: CIJE

Publication Date: 1978-Nov

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Stability of Parameter Estimates in the Split Population Exponential Distribution.

Miley, Alan D.

Evaluation Quarterly, v2 n4 p646-49 Nov 1978

The split-population exponential design suggested by Maltz and McCleary to predict parolee recidivism (TM 502 998) was applied to discharged psychiatric inpatients. Parameter estimates changed systematically as greater and greater observation time was allowed in the computation, thus limiting extrapolability. (Author/GDC)

Descriptors: Data Analysis, Institutionalized Persons, Mathematical Models, Prediction, Predictive Measurement, Predictive Validity, Psychiatric Hospitals, Recidivism, Reliability, Time

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Education Level: N/A

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Language: English

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