Lin Xinxin,Wang Yunge,Feng Bo,Wu Yajing,Huang Wei,Mou Haigang,Wu Shengjun,Liu Xufeng.Development of psychosis screening with prodromal questionnaire and evaluation of its reliability and validity[J].J Amry Med Univ (J Third Mil Med Univ),2016,38(20):2219-2223.
Lin Xinxin,Wang Yunge,Feng Bo,Wu Yajing,Huang Wei,Mou Haigang,Wu Shengjun,Liu Xufeng.Development of psychosis screening with prodromal questionnaire and evaluation of its reliability and validity[J].J Amry Med Univ (J Third Mil Med Univ),2016,38(20):2219-2223.DOI:
Development of psychosis screening with prodromal questionnaire and evaluation of its reliability and validity
Objective To design a prodromal questionnaire (PQ) for screening psychosis in young soldiers and to test its reliability and validity. Methods Based on published articles and specialists’ consensus
we established a preliminary version of PQ for psychosis screening. A final version of questionnaire was made after carrying out a trial of small samples. By cluster sampling
the PQ for psychosis and PQ-16 scales were administrated to 2 500 subjects among soldiers and students of military university. By random sampling
100 subjects were tested for the second time after 8 weeks. Data from 2 143 effective questionnaires were analyzed by descriptive statistics and structural analysis
and its reliability and validity were investigated. Results Four factors
i.e. cognitive change
behavioral change
social function change and personality change
were found by exploratory factor analysis. The value of factor loading ranged from 0.291 to 0.578. The internal consistency reliability was 0.957(P0.05). The test-retest coefficient was 0.884(P0.01). The correlation coefficient of the questionnaire with PQ-16 was 0.830. Conclusion The results show good reliability and validity of the PQ for psychosis screening. It can be a useful tool for screening the mental health status of young soldiers.