Engelbrecht, P.

anxiety children disorder african children symptom african anxiety symptoms factor anxiety disorder child scale phobia school yc h i child anxiety study subscale adolescent difference anxiety disorders score separation panic disorder problem panic separation anxiety disorder anxiety levels anxiety disorder symptoms level 4 1 worry country psychiatry parent dsm-iv american questionnaire screen spence anxiety score africa thing factor analysis behav res fi nding analysis merckelbach h childhood content reliability sample value psychol ollendick comparison nding result anxiety scores assessment speci table number behav people background dutch mayer b group psychometric properties 41- item validity structure adolesc psychometric reason agoraphobia thought classi factor analyses dutch children