Development of a Scale Study: Validity and Reliability of a Scale Compliance with Isolation Precautions

Aim: the aim of this study was to develop a valid and reliable tool to evaluate compliance with isolation precautions.method: this methodological study sample consisted of 430 nurses and physicians working in the internal medicine, general surgery, and pediatrics departments of a university hospital. relevant literature was reviewed to construct a pool of items; expert’s opinions were sought; validity of content and structure, and reliability of included items was analyzed. results: a 41-item draft was revised based on expert opinion and pretest results. total correlation values of the 35-item revised scale ranged between 0.60 and 0.34. correlation coefficient of test-retest reliability was 0.84, with a strong linear relationship between measurements. kaiser-meyer-olkin (kmo) value of 0.87 indicated adequate sampling and barlett test showed correlation between the items (p<0.05). structural validity was assessed by explanatory factor analysis and four factors (route of infection, practitioner-patient safety, environmental safety, hand-hygiene/glove use) were obtained.after the analyses item number was reduced to 18, 5-point likert scale format was used and cronbach alpha value of the compliance scale was determined as 0.85. conclusion: the developed scale was a valid and reliable assessment tool evaluating compliance with isolation precautions.