Abstract

Purpose: This study was done to test the validity and reliability of the MMDQ for middle school students. Method: A convenience sample of 318 middle school students were asked to complete the MMDQ which consisted of 37 items and data were collected from May to June, 2004. Result: 1. Six factors for MMDQ (except insomnia, finally 36 items) were extracted through the principal component analysis with varimax rotation, and these contributed 56.7% of the variance in the total score. All 36 items in the scale loaded above .37 on one of 6 factors. 2. Factor 1 has 7 items, factor 2 has 9 items, factor 3 has 8 items, factor 4 has 5 items, factor 5 has 4 items, and factor 6 has 3 items. 3. Cronbach's alpha coefficient for internal consistency of MMDQ was .946 for the total 37 items and .88, .86, .88, .81, .70, .61 for the six factors in that order. Conclusion: MMDQ was identified its adequacy as PMS measurement tool for middle aged students in Korea. In further study, these factors would be confirmed across different samples and across different methods of data collection.

Keywords

• Factor analysis;
• MMDQ;
• menstruation

• 요인분석;
• 여중생;
• 월경;