Spanish Adaptation and Validation of the Outcome Questionnaire OQ-30.2

Abstract

This study assessed the psychometric properties of a Spanish version of the Shortened Outcome Questionnaire (OQ-30.2, Lambert et al., 2004) validated with a sample of 546 patients in an outpatient mental health clinic and 100 non-clinical adults in Chile. Our results show that this measure has similar normative data to the original measure, with a cutoff score for the Chilean population set at 43.36, and the reliable change index at 14. This Spanish OQ-30.2 has good internal consistency (α = 0.90), has concurrent validity with the Depressive, Anxious, and Somatoform disorders measuring scale (Alvarado and Vera, 1991), and is sensitive to change during psychotherapy. Consistent with previous studies, factorial analyses showed that both, the one-factor solution for a general scale and the three-factor solution containing three theoretical scales yielded poor fit estimates. Overall, our results are similar to past research on the OQ-45 and the OQ-30. The short version has adequate psychometric properties, comparable to those of the OQ-45, but provides a gain in application time that could be relevant in the setting of psychotherapy research with large samples, frequent assessments over time, and/or samples that may require more assistance completing items (e.g., low-literacy). We conclude that this measure will be a valuable instrument for research and clinical practice.

Client and therapist match on gender, age, and income: Does match within the therapeutic dyad predict early growth in the therapeutic alliance?

“…Scores below 44 points suggest that the person is less disturbed than the general population. The OQ‐30 has been recently adapted with a Chilean sample (Errázuriz, Opazo, Behn, Silva, & Gloger, ) and yielded a high estimated internal consistency with a Cronbach Alpha of .88, presented high concurrent validity with a comparable measure, and showed adequate sensitivity to change.…”

Change in symptomatic burden and life satisfaction during short‐term psychotherapy: Focusing on the role of family income

“…The OQ‐30.2 has been found to have good internal consistency (.90), good concurrent validity (with the Depression Anxiety Stress Scales: r = 82) and sensitivity to change. The Spanish version of the OQ 30.2 (Errazuriz, Opazo, Behn, Gloger & Ramirez, ) preserves adequate psychometric properties.…”

Psychological intervention change measurement in Latin America: Where from? Where to?

“…See Table 1 for detailed information of these measures according the type of study and the country where they were used. We classified the OMs into two groups: one group contained those measures that can be considered as global measures of psychological distress (Tarescavage & Ben-Porath, 2014): OQ-45.2 (Lambert et al, 1996), OQ-30.2 (Errázuriz et al, 2017), Depression, Anxiety and Stress Scale (Lovibond & Lovibond, 1995), Outcome Rating Scale (Miller & Duncan, 2000), and Psychological Well-being Scale (Ryff, 1989). The second group contained all those measures that assess symptoms specific to some psychological disorder, e.g., BDI (Beck et al, 1996).…”