The Cross Cultural Adaptation and Psychometric Evaluation of the Bully Survey Swearer - Student Version (BYS-S) Indonesian version
Keywords:bullying questionnaire, primary school students, cross cultural adaptation, psychometric
Background. A valid instrument to measure the bullying in primary schools is needed to determine the
Aim. This study aimed to adapt the BYS-S questionnaire and psychometric evaluation with a cultural
Method. This psychometric testing applies the cross cultural adaptation method which consists of five
translation stages. Item validity was analyzed by Rank-Spearman (r) and Cronbach’s alpha (?) correlation
test and followed by tests to obtain discriminatory power and difficulty level for each item.
Result. The results showed that the items had a high level of validity and reliability with some discriminatory
items and the difficulty level of each item was very good. Discriminated and difficulty items in the form and
impact on bullying victims were higher than the bullies and bystanders.
Conclusion. BYS-S questionnaire Bahasa Indonesia’s version can be considered valid and reliable and has
excellent discriminatory and difficulty power.