Sex-related differential item functioning of the Jenkins Sleep Scale: a cross-sectional study among 77 967 employees in the Finnish public sector.

ABSTRACT:

Objectives

To investigate if the Jenkins Sleep Scale (JSS) demonstrates sex-related differential item functioning (DIF).

Design

Cross-sectional study.

Setting

Survey data from the Finnish Public Sector study (2015-2017).

Participants

77 967 employees in the Finnish public sector, with a mean age of 51.9 (SD 13.1) years and 82% women.

Outcome measures

Item response theory estimates: difficulty and discrimination parameters of the JSS and differences in these parameters between men and women.

Results

The mean JSS total score was 6.4 (4.8) points. For all four items of the JSS, the difficulty parameter demonstrated a slight shift towards underestimation of the severity of sleep difficulties. The discrimination ability of all four items was moderate t

SUBMITTER: Juhola J 

PROVIDER: S-EPMC10928794 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature