The brand new validity and you may accuracy of the survey had been checked-out and you can remedied in line with the pre-attempt
The brand new validity and you may accuracy of the survey had been checked-out and you can remedied in line with the pre-attempt Into , this study chose hookup several categories when you look at the Chengdu Shishi middle school and you can Jinniu secondary school respectively, delivered 300 questionnaires, retrieved 278 questionnaires, subtracted a …