DEVELOPING INDICATORS OF SCHOOL BULLYING FOR STUDENTS IN SECONDARY EDUCATIONAL SERVICE AREA OFFICE 18 ์

Abstract

          This research aimed to develop factors, develop indicators, and examine the construct validity of school bullying among students under the Secondary Educational Service Area Office 18. Data were collected using online questionnaires of school bullying among high school students. The sample included 1,067 students from grades 7 to 12 (Matthayom 1 to 6) of 8 schools under the Secondary Educational Service Area Office 18. The data were analyzed using descriptive statistics. The statistics used in the research were mean, standard deviation, and correlation coefficient. Also, exploratory factor analysis (EFA) and confirmatory factor analysis were employed in statistical analysis.
          The results revealed that:
          School bullying among students under the Secondary Education Area Office 18 had 3 factors and 12 indicators. The first factor was verbal bullying, which had 5 indicators. The second factor was social bullying, which has four indicators. The third factor, physical bullying, consisted of three indicators. The results of examining the construct validity of the factors of school bullying with empirical data revealed that the Chi-squared = 58.48, df = 44, p= .07, GFI= 0.99, AGFI = 0.99 and RMSEA= 0.01. These indices exhibited that school bullying had construct validity.