Sleep Related Questionnaires

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Brief Infant Sleep Questionnaire (BISQ)

Name of questionnaire Brief Infant Sleep Questionnaire (BISQ); BISQ -R
Type of original questionnaire-description, age/population BISQ: Parent-reported questionnaire on infants/toddler (0-29 months) sleep over prior one week
BISQ – R : expanded and revised version of BISQ  completed based on recall over prior  2 weeks
Number of items BISQ 13; BISQ-R:   33
Number of domains & categories 3 main categories
Name of categories/domains BISQ: Nocturnal sleep duration, night wakings, method of falling asleep

BISQ-R: Infant sleep (5 items); parent perception (3 items); parent behavior (11 items)
Scaling of items Scores on each subscale and the total score are scaled from 0 to 100
Scoring available: with permission or free Publicly- available and free for use (Ref. #5)
Scoring test-retest reliability Yes
Scoring Internal consistency Yes
Validity Yes -validated against  actigraphy and daily logs
Available forms (short and/or long etc.) Yes: BISQ-R and BISQ-R SF
Language English
Translations in other languages (if yes, then list the languages) BISQ: Chinese, Nepali, Portuguese, Turkish , Spanish
Developer(s) name Avi Sadeh, D.Sc., Jodi A. Mindell, Ph.D., and Liat Tikotzky, Ph.D.
Developer contact information for permission N/A
Availability of questionnaire: needs permission from developer, cost or freely available https://www.babysleep.com/bisq/ 

Publicly- available and free for use
Limitations Limited to 3 years of age and below
Link to the questionnaire (if available)


Other comments Short, simple, easy to use, study  also demonstrated  the feasibility of having parents complete the questionnaire via the internet
Patient populations in who questionnaire has been validated Infants and toddlers in predominantly Asian countries/regions, Australia and New Zealand; premature infants at 6 months postnatal age; preschool children
References (including original publication, validity and reliability in different countries/languages, populations and long/short versions) 1.    Sadeh A. A brief screening questionnaire for infant sleep problems: validation and findings for an Internet sample. Pediatrics. 2004;113(6):e570–7.

2.    Sadeh A, Mindell J a., Luedtke K, Wiegand B. Sleep and sleep ecology in the first 3 years: A web-based study. J Sleep Res. 2009;18(1):60–73.

3.    Cassanello P, Díez-Izquierdo A, Gorina N, Matilla-Santander N, Martínez-Sanchez JM, Balaguer A. Adaptation and study of the measurement properties of a sleep questionnaire for infants and pre-school children. Anales de Pediatría (English Edition). 2018;89:230-7.

4.    Tikotzky L, Volkovich E. Infant nocturnal wakefulness: a longitudinal study comparing three sleep assessment methods. Sleep. 2019;42.

5.    Mindell JA, Gould RA, Tikotzky L, Leichman ES, & Walters RM. (2019). Normative scoring system for the Brief Infant Sleep Questionnaire – Revised (BISQ-R). Sleep Medicine, 63, 106 – 114.

6.    Kohyama, J., Mindell, J. A. and Sadeh, A., Sleep characteristics of young children in Japan: Internet study and comparison with other Asian countries. Pediatrics International, 2011; 53: 649–655.

7.    Teng, A., Bartle, A., Sadeh, A. and Mindell, J., Infant and toddler sleep in Australia and New Zealand. Journal of Paediatrics and Child Health, 2012;  48: 268–273.

8.    Mindell JA, Sadeh A, Wiegand B, How TH, Goh DY.Cross-cultural differences in infant and toddler sleep. Sleep Med. 2010 Mar;11(3):274-80.

9.    Huang Y-S, Paiva T, Hsu J-F, Kuo M-C, Guilleminault C. Sleep and breathing in premature infants at 6 months post-natal age. BMC Pediatrics. 2014;14:303-6.

10.  Nunes ML, Kampff J, Sadeh A. BISQ Questionnaire for Infant Sleep Assessment: translation into brazilian Portuguese. Sleep Sci. 2012;5(3):89-91.

11.  Dhakal, A. K., Shrestha, D., Shah, S. C., Shakya, H., Shakya, A., & Sadeh, A.  A Nepali Translation of Brief Infant Sleep Questionnaire (BISQ) For Assessment of Sleep in Infants and Toddlers: A Preliminary Report. Journal of Kathmandu Medical College, 2015; 3(3), 102–106.

12.  Boran P, Ay P, Akbarzade A, KÜÇÜK S, Ersu  R. Translation into Turkish of the expanded version of the “Brief Infant Sleep Questionnaire” and its application to infants. Marmara Medical Journal. 2014 Oct 1;27(3).

13.  Del-Ponte B, Xavier MO, Bassani DG, Tovo-Rodrigues L, Halal CS, Shionuma AH, Ulguim KF, Santos IS. Validity of the Brief Infant Sleep Questionnaire (BISQ) in Brazilian children. Sleep Med. 2020 May;69:65-70. doi: 10.1016/j.sleep.2019.12.018. Epub 2020 Jan 11. PMID: 32045856. Sadeh A. A brief screening questionnaire for infant sleep problems: Validation and findings for an Internet sample. Pediatrics. 2004;113:e570-e7.
Updated by Iris A. Perez  
The last date of update January 2021