Sleep Condition Indicator.

SCI

What it measures

Insomnia-disorder symptoms mapped to DSM-5 criteria (sleep continuity, satisfaction, daytime effects, duration, frequency, chronicity)

Length and format

8 (SCI-08); 2-item SCI-02 short form. 5-point (0-4); summed 0-32; higher = better sleep; <=16 indicates probable insomnia disorder (self-report questionnaire)

Language versions

13+ languages incl. FR, IT, DE, ES, NL, ZH; broadly validated

Normative data

Normative data for this instrument is held in our reference library. The per-population breakdown is not published here.

Licence

open with attribution

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Espie, C. A., Kyle, S. D., Hames, P., Gardani, M., Fleming, L., & Cape, J. (2014). The Sleep Condition Indicator: A clinical screening tool to evaluate insomnia disorder. BMJ Open, 4(3), e004183.