Refinement, reliability and validity of the Time Capture Tool (TimeCaT) using the Omaha System to support data capture for time motion studies

Aim To refine and assess the inter-rater reliability and content validity of the embedded interface of nursing/midwifery activities in the Time Capture Tool (TimeCaT) using an interface terminology, the Omaha System. Methods This methodological study was conducted in two Family Health Centers (FHCs) in Turkey with a total of 13 nurses and midwives. In phase one, five nurses/midwives in a FHC were observed for a total of 80 hr, and 84 nursing/midwifery activities were generated and validated with 15 content experts. In phase two, the nursing/midwifery activities were mapped to the Omaha System and inter-rater reliability of the mapping was assessed. The mapping was validated with seven content experts. The nursing/midwifery activities were embedded in the interface of the TimeCaT. In phase three, the embedded interface of the TimeCaT was evaluated while observing eight nurses and midwives in the other FHC. Results The scale-level content validity index was 0.98 for the generated activities in phase one and 0.96 for the mapped activities in phase two. Kappa statistics for inter-rater reliability was 0.88 for Omaha System problems, 0.83 for categories and 0.83 for targets. The nursing/midwifery activities were adequately mapped to the Omaha System. The embedded interface of the TimeCaT has acceptable inter-rater reliability and content validity values for using in the Turkish FHC context. Conclusion The study results confirm that the TimeCaT using the Omaha System is a valid and reliable tool to measure nursing/midwifery workflow in FHC settings.