Reliability and validity of the Dutch Anxiety, Depression And Mood Scale in adults aged <50 years with intellectual disabilities. Issue 3 (20th November 2018)

• Record Type: Journal Article
• Authors: Hamers, Pauline C. M.; van Ool, Jans S.; Festen, Dederieke A. M.; Hendriksen, Jos G. M.; Bindels, Patrick J. E.; Hermans, Heidi
• Is Part Of: Journal of applied research in intellectual disabilities. Volume 32:Issue 3(2019:May)
• Page Start: 568
• Page End: 574
• Publication Date: 2018-11-20
• Subjects: anxiety -- depression -- intellectual disabilities -- reliability -- validity; Learning disabilities -- Periodicals; Mental retardation -- Periodicals; Learning disabled -- Periodicals; People with mental disabilities -- Periodicals; 616.85880072
• DOI: 10.1111/jar.12550
• Languages: English
• ISSNs: 1360-2322

Abstract

Abstract: Background: Reliable and valid screening instruments for depression and anxiety are needed for adults with intellectual disabilities. Methods: Internal consistency ( n = 198), inter‐rater reliability ( n = 41), test–retest reliability ( n = 37) and criterion validity ( n = 43) were studied in adults aged between 18 and 49 years. Internal consistency was also studied in a sample with epilepsy ( n = 98). Results: Internal consistencies of the Dutch ADAMS total scale and subscales were satisfactory to good (α = 0.76–0.92), as well as in the subgroup with epilepsy (α = 0.74–0.88). Inter‐rater reliability and test–retest reliability were fair to excellent for the total scale (ICC's: 0.57–0.84) and subscales (ICC's: 0.43–0.86). The criterion validity of the Dutch ADAMS Depressive Mood subscale was good with a sensitivity of 88% (95% CI: 53%–98%) and a specificity of 80% (95% CI: 64%–90%). Conclusions: Our study shows that the Dutch ADAMS is a reliable and valid instrument for adults aged between 18 and 49 years with intellectual disabilities (and comorbid epilepsy).