[The "AMDP-rating scale for obsessive-compulsive symptoms": The 2nd version].
The "Association of Methodology and Documentation in Psychiatry" (AMDP) has developed the 2nd version of a new observer-rated scale for a quick and precise assessment of obsessive-compulsive symptoms. The first version of the scale comprised 20 items on the dimensions "description", "distress and impairment" and "emotion and cognition". The item pool of the 2. version was enlarged to 44 items to accomplish a differentiated assessment of obsessions and compulsions and to assess the associated passive avoidance behaviour. The results of an empirical study (n = 141) demonstrated excellent internal consistency (Cronbach's alpha = 0,93), a split-half reliability of 0,83 (Spearman-Brown), a test-retest reliability of r = 0,84, a high interrater-reliability, a high differential validity and good convergent validity with the Hamburger Zwangsinventar (HZI) and the SCL-90-R. The results are presented and their implications on the final steps of the development of the scale will be discussed.