A Rasch model based psychometric evaluation of different versions of the Minimal Insomnia Symptom Scale (MISS) among adults
Albert Westergren; Gita Hedin; Peter Hagell; Charlotte Bäccman; Annika Norell‐Clarke; David Andrich
Abstract Background Insomnia is a common health complaint among adults and is associated with poor health. Sleeping patterns differ due to age, with younger adults having greater problems with sleep deprivation causing problems during daytime, and older adults having greater problems with nocturnal awakenings during nights. Screening tools are needed to initially capture insomnia symptoms in need for further assessment. The study aim was to psychometrically test and compare the original three item Minimal Insomnia Symptom Scale (MISS), revised version of MISS (MISS-R), and a four-item scale (MISS-4) on an adult population, by using the Rasch measurement model. Methods A cross-sectional design was used, and the sample consisted of participants in an online survey of a Citizen Panel. Out of the total sample ( N = 1517), 784 (52%) persons with answers on four sleep items, age, and gender we...
Albert Westergren, Gita Hedin, Peter Hagell, Charlotte Bäccman, Annika Norell‐Clarke, & David Andrich (2025). A Rasch model based psychometric evaluation of different versions of the Minimal Insomnia Symptom Scale (MISS) among adults. Sleep Science and Practice, 9(1). https://doi.org/10.1186/s41606-025-00131-0