Quality of Life Questionnaire (QOL.Q)

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Schalock, R. and Keith, K.D. (1993) Quality of Life Questionnaire Manual. Intellectual Developmental Disabilities Publication Corporation, Washington DC.
General information
Purpose The Quality of Life Questionnaire (QOL.Q; Schalock & Keith, 1993) measures the quality of life of a person with an intellectuality disability. It has 40 interviewer-administered items, each of which relates to an aspect of a person’s life. Three possible responses are provided for the person to select the most appropriate to their life situation. […]
Domain(s) Goal Pursuit
Life Satisfaction
Positive Affect
Target population Adult
Number of items 40
Administration format self-report
Additional formats
Alternate forms
Availability in other languages
Fee for use
Related information on use of the measure


Non-exhaustive list of psychometric studies

Caballo, C., Crespo, M., Jenaro, C., Verdugo, M. A., & Martinez, J. L. (2005). Factor structure of the Schalock and Keith Quality of Life Questionnaire (QOL-Q): Validation on Mexican and Spanish samples. Journal of Intellectual Disability Research, 49(10), 773–776. https://doi.org/10.1111/j.1365-2788.2005.00750.x

Rapley, M., & Lobley, J. (1995). Factor Analysis of the Schalock & Keith (1993) Quality of Life Questionnaire: A Replication. Mental Handicap Research, 8(3), 194–202. https://doi.org/10.1111/j.1468-3148.1995.tb00155.x

Albuquerque, C. P. (2012). Psychometric Properties of the Portuguese Version of the Quality of Life Questionnaire (QOL-Q). Journal of Applied Research in Intellectual Disabilities, 25(5), 445–454. https://doi.org/10.1111/j.1468-3148.2012.00685.x

Additional information