Appendix C to Summary Report

New Measures of Diabetic Patient Behavior, Knowledge, and Attitudes

by Kent H. Marquis, John E. Ware, Daniel A. Relles

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Describes and evaluates newly developed questionnaire measures of diabetic patient behavior, knowledge, and attitudes using internal consistency, retest, informant, medical record, and skill demonstration data. Of 26 new behavior scales developed, only 3 met all reliability, validity, and bias requirements, 11 showed serious measurement problems that will be difficult to correct and the remaining 12 scales show promise but need further development. Of 21 new knowledge scales, 12 met internal consistency criteria but further use should await validity evaluations. Preliminary attitude measurement findings are given. Patient behavioral compliance was found to be multidimensional: compliance with one self-care requirement did not predict compliance with other requirements. On the other hand, knowledge (and possibly attitude) data appear to have fewer dimensions so measurement can be more efficient. (Appendix C to R-2480.)

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