[Development of a short version of the Insecurity Questionnaire (U-Bogen-24) by Ullrich & Ullrich de Muynck].

The psychometric properties of a newly developed short version of the "Unsicherheitsfragebogen" (Insecurity Questionnaire) by Ullrich & Ullrich de Muynck are examined using data drawn from a nationally representative survey of 652 former East and 1283 former West Germans. In addition, the questionnaire was tested on a clinical sample of 318 psychotherapy inpatients. The study demonstrates good test-theoretical features regarding parameters of items and subscales. In the population sample woman score higher on subscales fear of criticism and incapacity in saying NO and lower on scale being able to demand. Female psychotherapy patients score higher on scale fear of criticism and lower on scale being able to demand than male psychotherapy patients. When comparing psychotherapy patients to the population sample with respect to gender, male and female psychotherapy patients score higher on scales fear of criticism, fear of contact and incapacity in saying NO and lower on scale being able to demand. Scale means as reference values for the population sample as well as for the psychotherapy patients are reported.