Outcome Questionnaire-45 (OQ-45.2)
Psychology: Mental HealthReliability: alpha 0.934 sample items
About this scale
A 45-item self-report measure of psychotherapy outcomes across three subscales: symptom distress, interpersonal relations, and social role functioning.
Sample item(s)
“I feel fatigued”
“I feel no interest in things”
“I feel something is wrong with my mind”
“I am satisfied with my relationships with others (reverse)”
Reliability
Reported internal consistency: alpha 0.93. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Standard psychotherapy outcome measure.
Source & citation
Lambert, M. J., Burlingame, G. M., Umphress, V., Hansen, N. B., Vermeersch, D. A., Clouse, G. C., & Yanchar, S. C. (1996): The reliability and validity of the Outcome Questionnaire. Clinical Psychology and Psychotherapy, Vol. 3, No. 4, pp. 249–258.
Source. Scale details are summarised from the publication cited above. Always consult the original source for the full item set, scoring, and permission to use.
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