Insights in Subjective Sleepiness Scales

    Onderzoeksoutput: Conference paper

    Samenvatting

    Self-evaluation category rating scales are widely used instruments in sleepiness research. They are convenient and offer plenty of economic advantages, but unfortunately, they are also associated with psychometric shortcomings. In order to improve the quality of subjective sleepiness assessment, we propose a modified version of Borgs CR10 scale (Borg, 1998)-the CR10 SR- to measure perceived effort to stay awake. Thirty-six male shift-workers performed a 25 min driving simulator test (DriveSim 3.0) between 5.15 and 6.00 AM after a late-night 7 hour shift. Driving performance was assessed using (1) average speed, (2) speed deviation and (3) accident liability. Situational and global sleepiness were assessed with both the Stanford Sleepiness Scale (SSS) and the Epworth Sleepiness Scale (ESS) whereas situational sleep resistance was assessed with the CR10 SR. No significant differences were found in how well SSS or CR10 SR predict average speed, unless the CR10 SR scores were treated as ordinal data. Finally, it seems that CR10 SR predicts speed deviation and accident liability better than the SSS.
    Originele taal-2English
    TitelFechner Day 2005
    RedacteurenJ.s. Monahan, S.m. Sheffert, J.t. Townsend
    UitgeverijInternational Society for Psychophysics
    Pagina's181-186
    Aantal pagina's6
    StatusPublished - okt 2005
    EvenementUnknown - Stockholm, Sweden
    Duur: 21 sep 200925 sep 2009

    Publicatie series

    NaamFechner Day 2005

    Conference

    ConferenceUnknown
    Land/RegioSweden
    StadStockholm
    Periode21/09/0925/09/09

    Bibliografische nota

    J.S. Monahan,S.M. Sheffert, J.T. Townsend

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