Questionnaire6

Questionnaire6 is a standardized self-report instrument developed to assess psychosocial functioning and well-being across multiple domains in adults. It comprises six subscales covering emotional well-being, social functioning, cognitive symptoms, physical symptoms, daily activities, and coping resources.

Developed by a collaboration at a health measurement consortium, it was first published in the early 2010s. The design emphasizes cultural adaptability and allows domain-specific and overall indices of functioning.

Structure and scoring: The instrument contains 36 items, answered on a five-point Likert scale from 1 (never) to 5 (always). Subscale scores and a total score are computed, with higher scores indicating greater presence of the measured construct.

Validity and reliability: Across studies, internal consistency is high (Cronbach's alpha generally 0.82–0.94). Factor analyses support a six-factor structure, and test–retest reliability is satisfactory.

Administration and usage: It can be self-administered or interviewer-administered, takes about 15–20 minutes, and is available in multiple languages. It is used in clinical trials, epidemiology, workplaces, and educational settings to monitor patient-reported outcomes and track changes over time.

Limitations and licensing: As a self-report measure, it is subject to response biases and literacy requirements. Proper cultural adaptation and adherence to licensing terms are advised.

See also: Related psychometric instruments such as the SF-36 and the WHO-5 Well-Being Index.