The data for the study is taken from the answers to questionnaires dispatched to the teachers and students under study . the statistical method used is simple random sampling . the sample size is 223 junior - secondary students ( 119 males and 104 females ) and 27 teachers ( 11 males and 16 females ) 女生104人) ，及教师共27人(男教师11人，女教师16人) ，以随机抽样方式进行问卷调查，并利用spss10 . 0作为分析工具，采用因素分析、 f检验、卡方分析、两两相关等方法对问卷资料进行了统计分析。
