Reliability and validity of the German version of the European Addiction Severity Index (EuropASI) (original) (raw)
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The addiction severity index: Reliability and validity in a Dutch addict population
Journal of Substance Abuse Treatment, 1989
The Addiction Severity Index (ASI) was evaluated for its psychometric qualities in a Dutch alcoholic population admitted to an addiction treatment center in The Netherlands. Its factorial structure in this population was found to be consistent with the established six factor structure of the ASI. Reliability analysis revealed that the homogeneity of the subscales was acceptable with the exception of the Alcohol Scale. The six subscales were not highly intercorrelated. The results of this study indicate that the AS1 is a useful instrument for the assessment of several problems associated with alcoholism. However, the Alcohol Scale appears to be limited as a diagnostic and research instrument in the field of inpatient treatment of alcohol dependence in The Netherlands.
International Journal of Methods in Psychiatric Research, 2010
The Health of the Nation Outcome Scales (HoNOS) is an internationally-established clinician-rating instrument for the differential assessment of the severity of patients with mental disorders. The aim of this study was to examine the validity of the German version of the HoNOS (HoNOS-D). Evaluation of validity, including factor validity, convergent and discriminant validity and sensitivity to change, was conducted on a large, virtually representative, clinical sample of patients with mental disorders in inpatient psychotherapy (Study 1, N = 3169). Additional assessment of criterion-based validity was completed using another clinical sample of patients with mental disorders (Study 2, N = 55). Although factor validity of the HoNOS-D and its total score could not be confirmed as expected, the majority of single items of the HoNOS-D proved to be valid in terms of convergent validity, criterion-based validity and sensitivity to change. Hence, single items, rather than the total score of the HoNOS-D, can be recommended for obtaining a picture of the impairment of patients with mental disorders in the clinical setting. Copyright © 2010 John Wiley & Sons, Ltd.
The EUROHIS-QOL 8-Item Index: Comparative Psychometric Properties to Its Parent WHOQOL-BREF
Value in Health, 2012
To test the psychometric properties of the EUROHIS-QOL 8-item index, a shortened version of the World Health Organization Quality of Life Instrument-Abbreviated Version (WHOQOL-BREF). Methods: The sample consisted of 2359 subjects identified from primary care settings, with 1193 having a confirmed diagnosis of depression. Data came from six countries (Australia, Brazil, Israel, Russia, Spain, and the United States) involved in a large international study, the Longitudinal Investigation of Depression Outcomes. The structure of the EUROHIS-QOL 8-item index follows that of the WHOQOL-BREF assessment. Internal consistency was measured by using Cronbach's alpha. Convergent validity was assessed by using correlations with different measures for mental health (Symptom Checklist 90), physical health (self-evaluation), and quality of life (WHOQOL-BREF and short form 36 health survey). Discriminant group validity was assessed between diagnosed depressed and nondepressed patients. Differential item functioning and unidimensionality were analyzed by using Rasch analysis. Factor structure was assessed with structural equation modeling analyses. Results: Internal consistency was acceptable (ranged between 0.72 and 0.81 across countries), and the index discriminated well between depression (t ϭ 6.31-20.33; P Ͻ 0.001) across all countries. Correlations between the EUROHIS-QOL 8-item index and different measures-Symptom Checklist 90 (r ϭ Ϫ0.42), physical health (r ϭ Ϫ0.42), WHOQOL-BREF domains (r ϭ 0.61-0.77), and short form 36 health survey (r ϭ 0.58)-were all significant (P Ͻ 0.001). The index is unidimensional with desired item fit statistics. Two items ("daily living activities" and "enough money to meet your needs") had residuals exceeding 4. Differential item functioning was observed with general quality of life, general health, relationships, and home items for age. A common one-factor structure with acceptable fit was identified in three out of six countries (comparative fit index ϭ 0.85, root mean square error of approximation ϭ 0.11). Conclusions: The EUROHIS-QOL 8-item index showed acceptable cross-cultural performance and a satisfactory discriminant validity and would be a useful measure to include in studies to assess treatment effectiveness.
Psychometric properties and norms of the German ABC-Community and PAS-ADD Checklist
Research in Developmental Disabilities, 2011
The aim of the present study was to standardize and generate psychometric evidence of the German language versions of two well-established English language mental health instruments: the Aberrant Behavior Checklist-Community (ABC-C) and the Psychiatric Assessment Schedule for Adults with Developmental Disabilities (PAS-ADD) Checklist. New methods in this field were introduced: a simulation method for testing the factor structure and an exploration of long-term stability over two years. Methods: The checklists were both administered to a representative sample of 270 individuals with intellectual disability (ID) and, two years later in a second data collection, to 128 participants of the original sample. Principal component analysis and parallel analysis were performed. Reliability measures, long-term stability, subscale intercorrelations, as well as standardized norms were generated. Prevalence of mental health problems was examined. Results: Psychometric properties were mostly excellent, with long-term stability showing moderate to strong effects. The original factor structure of the ABC-C was replicated. PAS-ADD Checklist produced a similar, but still different structure compared with findings from the English language area. The overall prevalence rate of mental health problems in the sample was about 20%. Conclusion: Considering the good results on the measured psychometric properties, the two checklists are recommended for the early detection of mental health problems in persons with ID.
Reliability and Validity of the Hungarian Version of the European Addiction Severity Index
Psychopathology, 2005
We attempted a Hungarian adaptation of the European version (EuropASI) of the widely used Addiction Severity Index (ASI) within the frame of a multi-stage quality development programme. The ASI is characterised by good reliability and validity indicators. The empirical background for our research was the data obtained from ASI ratings for 266 alcohol-and drug-using patients presenting for treatment in addiction medicine clinics in different regions of the country. The reliability indicators for measurement tool rating (interrater) and time (testretest) were high, with the exception of the correlation value for employment and support. The internal consistency of the test was good. The degree of correlation between the individual items did not exceed that found internationally. The psychometric results corresponded to the results obtained in foreign investigations. The Hungarian version of the ASI can be regarded as a useful and reliable measuring tool that can be used to identify the problems of addiction patients and to assess treatment effi cacy.
Journal of Substance Abuse Treatment, 2009
Motivational interviewing (MI) is effective in the treatment of addictions. To evaluate MI adherence of therapists, the Motivational Interviewing Treatment Integrity Code (MITI) was developed. MI is used in German-speaking countries, but there is no equivalent to the MITI. Our aim was to adapt the MITI for use in German language settings (MITI-d). Twenty-eight session tapes of Alcoholism Specific Psychotherapy utilizing MI were rated by two student raters and the MITI-d instructor. To evaluate interrater reliability, intraclass correlation coefficients (ICCs) were computed. ICCs were good to excellent for relevant MI constructs, except for Complex Reflections, MI-nonadherent Behaviors, Empathy, and MI Spirit. The evaluation of test-retest reliability for the student raters showed good to excellent results. The MITI-d is a psychometrically sound instrument for evaluating basic MI competence in German language settings.
German–Dutch Comparison of Factors of Psycholexically Derived Values
Journal of Individual Differences, 2011
Two psycholexically based taxonomies of values found in Dutch and in German are compared, and a joint structure is presented. The datasets consisted of self- and other-ratings of 634 participants on 641 Dutch value descriptors and of self-ratings of 456 participants on 496 German value descriptors. For both taxonomies factor solutions with one up to 8 factors were extracted, and
Psychopathology, 2011
Background: The Health of the Nation Outcome Scales (HoNOS) were developed to assess the severity of a mental illness. They are used as outcome measures in different countries, and are meanwhile translated from the original English version into many languages, among others into German (HoNOS-D). We conducted a study in order to estimate the concurrent validity and sensitivity to change using clinical parameters as ICD-10 diagnoses, as well as the Clinical Global Impression Scale (CGI), and the Association for Methodology and Documentation in Psychiatry (AMDP) psychopathology scale, a frequently used psychopathological rating system, in a representative clinical sample. Sampling and Methods: Data on the three instruments (CGI, AMDP, HoNOS-D) were collected at admission and discharge of 100 psychiatric inpatients using a representative clinical sample. Experienced clinicians completed the CGI, AMDP and HoNOS-D. Descriptive and comparative data analyses were performed. We estimated the concurrent validity by calculating correlations between the HoNOS and other scales. Secondly, we examined the differences between HoNOS scores related to diagnoses and demographic parameters. Thirdly we calculated change criteria and outcome effect size for the HoNOS. Results: Even in a small clinical sample (n = 100), the HoNOS-D items are highly correlated with the corresponding AMDP syndromes (p ! 0.003). The HoNOS-D score is associated with the CGI score (p ! 0.01). Correlations of HoNOS symptoms, behavior and impairment items with AMDP syndromes as well as differences in diagnoses were appropriate and comprehensible as regards clinical content, and change on the HoNOS total score is statistically significant (t = 6.57, d.f. = 89, p ! 0.0001). Conclusion: This study is the first to investigate the concurrent validity of HoNOS-D concerning psychopathology using the AMDP rating system in a clinical sample of patients with mental disorders in an inpatient setting. HoNOS-D can be recommended for routinely screening outcomes in inpatient psychiatric settings. Our analysis showed that HoNOS-D covers psychopathology corresponding to the AMDP rating system. A limitation of the study is that the study sample comprised only an inpatient population; there may well be differences compared to an outpatient sample.