Development and Testing of the Psychometric Properties of the Attitude Towards Medical Device-related Pressure Ulcers/Injuries Questionnaire.

Abstract

BACKGROUND\nMedical device-related pressure ulcers/injuries (MDRPU/Is) are a serious concern in health care.\n\n\nPURPOSE\nTo develop and assess the psychometric testing of a questionnaire to measure nursing students attitudes about the care and prevention of MDRPU/Is.\n\n\nMETHODS\nBased on a review of the literature, a 26-item questionnaire was developed; face validity was assessed by ten (10) nursing students. The modified Lawshe s model was used, and both the content validity index (CVI) and content validity ratio were calculated. Items with a CVI more than 0.63 were retained. The minimum optimal CVI for the new instrument was 79%. Qualitative assessments were performed by 10 experienced faculty members. One-hundred-and-eighty seven (187) nursing students participated in the construct validity testing of the 11-item questionnaire. The Kaiser-Meyer-Olkin test of sampling adequacy and Bartlett s test of sphericity were performed. Following analysis of the main components and the varimax rotation, the factor analysis was determined. Internal consistency (Cronbach s alpha) and test-retest were determined using Pearson s correlation and intraclass correlation coefficient to evaluate reliability.\n\n\nRESULTS\nDuring the face validity phase of the initial 26 items, 7 items had impact scores less than 1.5. After calculating the CVI and content validity ratio for all items, 8 items did not achieve the desirable score. After performing exploratory factor analysis on the remaining 11 items, the Kaiser-Meyer-Olkin test value was 0.789, and Bartlett s test of sphericity was 0.0001, which was statistically significant. Internal consistency of items (Cronbach s alpha of 0.77) showed that all items had a high correlation. The reliability of test-retest was significant using an intraclass correlation coefficient of 0.75 and Pearson s correlation coefficient of 0.86 at P < .005.\n\n\nCONCLUSION\nIn this sample of nursing students, the Attitude Towards Medical-device Related Pressure Ulcers/Injuries Questionnaire was valid and reliable. Studies including licensed clinicians are needed to confirm these results.