Screening for obsessive-compulsive symptoms: Validation of the Dimensional Obsessive-Compulsive Scale - English and German Short Forms (original) (raw)
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Journal of Anxiety Disorders, 2008
The OCI-R is a psychometrically sound and valid self-report scale measuring the major symptoms of OCD on six dimensions: Checking, Washing, Ordering, Hoarding, Obsessing, and Neutralizing. Information is needed on its ability to discriminate OCD from depression. In this study, reliability and convergent, divergent, and known-groups validity of an authorized German version were examined in 381 patients with OCD, other anxiety and depressive disorders. Confirmatory factor analyses replicated the original six-factor structure in each sample. Moreover, results indicated good convergent, divergent, and known-groups validity for the full scale and the subscales in each sample, only a slight construct overlap between OCD and depression, anxiety, pathological worry, and perfectionism, and the relationships of the subscales with obsessive-compulsive personality features supported its construct validity. Previous findings for the original scale were replicated and extended in a different cultural context. However, the domains Neutralizing and Obsessions need further development. #
A Norwegian version of the Obsessive-Compulsive Inventory-Revised: Psychometric properties
Scandinavian Journal of Psychology, 2010
The aims of this study were to test the psychometric properties of the Norwegian version of the Obsessive-Compulsive Inventory-Revised (OCI-R). The study included a student/community control sample (N = 1167) and a clinical sample (N = 72) with a diagnosis of obsessive-compulsive disorder (OCD). The results indicated a good fit for the six-factor structure of the OCI-R. The mean scores and standard deviations were similar to that of studies from other countries as was the internal consistency. The OCI-R scores were significantly higher in the OCD sample compared to the control sample. All the subscales, except hoarding, were significant predictors of obsessive-compulsive severity, and the OCI-R subscales seemed to be in agreement with the different subtypes of OCD according to DSM-IV. The OCI-R showed meaningful correlations with measures related to obsessive compulsive symptoms. As expected, it showed the strongest correlation with the Yale-Brown Obsessive Compulsive Scale, followed by measures of worry, anxiety, and depression. In summary, the Norwegian OCI-R showed adequate psychometric properties suggesting it could be a suitable measure of obsessive-compulsive symptoms.
The Dimensional Obsessive-Compulsive Scale: Development and Validation of a Short Form (DOCS-SF)
Frontiers in Psychology
Accurately and reliably measuring the presence and severity of Obsessive-Compulsive Disorder (OCD) symptoms is essential for both routine clinical work and research. The current study investigated psychometric properties of the dimensional obsessive-compulsive scale-short form (DOCS-SF). DOCS-SF was developed and validated in Norwegian. DOCS-SF contains a checklist with four symptom categories and five severity items scored on a zero to eight scale yielding a total score of 0-40. Data were collected from adults with a current diagnosis of OCD (n = 204) and a community comparison group (n = 211). The results provided evidence of internal consistency and convergent validity, although evidence for discriminant validity was mixed. Evidence was also found for diagnostic sensitivity and specificity, and treatment sensitivity. The analyses suggested a cutoff score of 16. In summary, the data obtained proved similar to studies published on the original dimensional obsessive-compulsive scale. There is strong evidence for the reliability and validity of the DOCS-SF for assessing OCD symptoms in individuals with this condition and in non-clinical individuals.
Comprehensive psychiatry, 2015
The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) is the most widely accepted measure of obsessive-compulsive disorder (OCD) symptom severity. Recently, the scale has been revised into a second edition (Y-BOCS-II) in order to improve its measurement properties. The present study aimed to evaluate the psychometric properties of the Italian version of the Y-BOCS-II Severity Scale (SS) in a large clinical sample. The original version of the Y-BOCS-II was translated into Italian, which involved forward and back-translation procedures. The Italian Y-BOCS-II-SS was administered to one hundred twenty-five treatment-seeking adults with OCD, together with the original Y-BOCS-SS and a battery of self-report measures assessing OCD symptom severity and depressive and anxious symptomology. The factor structure, internal consistency, temporal stability, and construct validity were investigated on the whole sample, while inter-rater and test-retest reliability were assessed on a subsample of part...
The usefulness of the Obsessive Compulsive Scale of the Symptom Checklist-90-Revised
Behaviour Research and Therapy, 1995
The reliability and validity of the SCL-90-R Obsessive Compulsive Scale were examined using a multi-trait multi-method approach in a sample of 54 outpatients with obsessive-compulsive disorder (OCD). The OC scale proved to be internally consistent. Evidence for convergent validity was mixed, and the results suggest poor divergent and criterion-related validities. The scale demonstrated sensitivity to changes with behavioral treatment. Overall, the SCL-90-R proved to be a poor measure of OCD symptoms.
Revue Européenne de Psychologie Appliquée/European Review of Applied Psychology, 2006
presented a new instrument, the Obsessive-Compulsive Inventory-Revised (OCI-R), designed to evaluate the severity of obsessive-compulsive symptoms in both clinical and non-clinical individuals. The present study investigates the psychometric properties of a French version of this scale. The OCI-R French version was completed by 583 undergraduate students. The results revealed satisfactory internal consistency as measured by Cronbach's alpha coefficients (ranging from 0.63 to 0.86). In addition, the six-factor structure found by was confirmed in our sample by a confirmatory factor analysis. In brief, the French version of the OCI-R seems satisfactory for measuring Obsessive-Compulsive Disorders (OCD) symptoms in non-clinical samples. Future research is, however, needed to confirm these data in a sample of OCD patients.
Molecular Psychiatry, 2006
Obsessive-compulsive disorder (OCD) encompasses a broad range of symptoms representing multiple domains. This complex phenotype can be summarized using a few consistent and temporally stable symptom dimensions. The objective of this study was to assess the psychometric properties of the Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS). This scale measures the presence and severity of obsessive-compulsive (OC) symptoms within six distinct dimensions that combine thematically related obsessions and compulsions. The DY-BOCS includes portions to be used as a self-report instrument and portions to be used by expert raters, including global ratings of OC symptom severity and overall impairment. We assessed 137 patients with a DSM-IV diagnosis of OCD, aged 6-69 years, from sites in the USA, Canada and Brazil. Estimates of the reliability and validity of both the expert and self-report versions of the DY-BOCS were calculated. The internal consistency of each of the six symptom dimensions and the global severity score were excellent. The interrater agreement was also excellent for all component scores. Self-report and expert ratings were highly intercorrelated. The global DY-BOCS score was highly correlated with the total Yale-Brown Obsessive-Compulsive Scale score (Pearson r = 0.82, P < 0.0001). Severity scores for individual symptom dimensions were largely independent of one another, only modestly correlated with the global ratings, and were also differentially related to ratings of depression, anxiety and tic severity. These results indicate that the DY-BOCS is a reliable and valid instrument for assessing multiple aspects of OCD symptom severity in natural history, neuroimaging, treatment response and genetic studies when administered by expert clinicians or their highly trained staff.