Title: Development and reliability and validity test of a questionnaire on skin failure knowledge-attitude-practice for pressure injury management staff
Abstract:
Background: There is a lack of survey tools to systematically and comprehensively assess the current state of knowledge-attitude-practice about skin failure among pressure injury management staff.
Aim: This study aimed to develop a questionnaire to measure the knowledge, attitude, and practice regarding skin failure among pressure injury management staff and to evaluate its reliability and validity.
Participants: For reliability and validity assessments, including confirmatory factor analysis, convenience samples of 329 and 340 pressure injury management staff were recruited.
Methods: Utilizing the knowledge-attitude-practice theoretical framework, the initial questionnaire was devised through an extensive literature review and group discussions. It was refined through two rounds of the Delphi method and a pilot survey. Reliability analysis of the scale using statistical methods.
Results: The refined questionnaire comprises three dimensions—knowledge, attitude, and practice—with 42 items in total. It achieved a content validity index (CVI) of 1.000 for each item and overall. Two rounds of exploratory factor analysis indicated a cumulative variance contribution of 72.720%. Confirmatory factor analysis confirmed an acceptable model fit. Cronbach`s alpha for the overall questionnaire was 0.970, with the subscales of knowledge, attitude, and practice scoring 0.970, 0.975, and 0.960, respectively. The split-half reliability of the overall questionnaire was 0.812, with individual dimensions scoring 0.932, 0.946, and 0.938. Test-retest reliability after two weeks was 0.866 overall, with the dimensions scoring 0.849, 0.817, and 0.827.
Conclusions: The knowledge-attitude-practice questionnaire demonstrated robust reliability and validity, qualifying it as an effective tool for assessing the proficiency in skin failure management among pressure injury staff.
