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Educational and Psychological Measurement, Vol. 51, No. 2, 365-375 (1991)
DOI: 10.1177/0013164491512010
© 1991 SAGE Publications

The Factor Structure of the Iowa Self-Assessment Inventory

Jerry S. Gilmer

The University of Iowa, Iowa City, Iowa

T. Anne Cleary

The University of Iowa, Iowa City, Iowa

Der Fa Lu

The University of Iowa, Iowa City, Iowa

Woodrow W. Morris

The University of Iowa, Iowa City, Iowa

Kathleen C. Buckwalter

The University of Iowa, Iowa City, Iowa

Patricia Andrews

The University of Iowa, Iowa City, Iowa

Sandra Boutelle

The University of Iowa, Iowa City, Iowa

Deborah L. Hatz

The University of Iowa, Iowa City, Iowa

This paper presents results of analyses related to the factor structure of the Iowa Self-Assessment Inventory (ISAI), an instrument measuring the following seven functional characteristics of the elderly: (a) economic resources, (b) cognitive status, (c) mobility, (d) physical health, (e) emotional balance, (f) social support, and (g) alienation. Prior evidence supporting these seven dimensions derived from two separate studies; one study supported the first four dimensions and a separate study supported the other three. Exploratory and confirmatory factor analyses provided support for the seven dimensions. Analyses were based on an administration of the complete ISAI to a single sample of 484 elderly. Scale means, standard deviations, reliabilities, and inter-correlations, also based on this administration, are consistent with previous research.


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