@article {138, title = {Development of an item bank for the assessment of depression in persons with mental illnesses and physical diseases using Rasch analysis}, journal = {Rehabilitation Psychology}, volume = {54}, number = {2}, year = {2009}, note = {Forkmann, ThomasBoecker, MarenNorra, ChristineEberle, NicoleKircher, TiloSchauerte, PatrickMischke, KarlWesthofen, MartinGauggel, SiegfriedWirtz, MarkusResearch Support, Non-U.S. Gov{\textquoteright}tUnited StatesRehabilitation psychologyRehabil Psychol. 2009 May;54(2):186-97.}, month = {May}, pages = {186-97}, edition = {2009/05/28}, abstract = {OBJECTIVE: The calibration of item banks provides the basis for computerized adaptive testing that ensures high diagnostic precision and minimizes participants{\textquoteright} test burden. The present study aimed at developing a new item bank that allows for assessing depression in persons with mental and persons with somatic diseases. METHOD: The sample consisted of 161 participants treated for a depressive syndrome, and 206 participants with somatic illnesses (103 cardiologic, 103 otorhinolaryngologic; overall mean age = 44.1 years, SD =14.0; 44.7\% women) to allow for validation of the item bank in both groups. Persons answered a pool of 182 depression items on a 5-point Likert scale. RESULTS: Evaluation of Rasch model fit (infit < 1.3), differential item functioning, dimensionality, local independence, item spread, item and person separation (>2.0), and reliability (>.80) resulted in a bank of 79 items with good psychometric properties. CONCLUSIONS: The bank provides items with a wide range of content coverage and may serve as a sound basis for computerized adaptive testing applications. It might also be useful for researchers who wish to develop new fixed-length scales for the assessment of depression in specific rehabilitation settings.}, keywords = {Adaptation, Psychological, Adult, Aged, Depressive Disorder/*diagnosis/psychology, Diagnosis, Computer-Assisted, Female, Heart Diseases/*psychology, Humans, Male, Mental Disorders/*psychology, Middle Aged, Models, Statistical, Otorhinolaryngologic Diseases/*psychology, Personality Assessment/statistics \& numerical data, Personality Inventory/*statistics \& numerical data, Psychometrics/statistics \& numerical data, Questionnaires, Reproducibility of Results, Sick Role}, isbn = {0090-5550 (Print)0090-5550 (Linking)}, author = {Forkmann, T. and Boecker, M. and Norra, C. and Eberle, N. and Kircher, T. and Schauerte, P. and Mischke, K. and Westhofen, M. and Gauggel, S. and Wirtz, M.} }