my research base on the bully/victim and personality dimension in adolescence. i decided i will use EPI eysenck personality Inventory scale my question is in this thesis which scale should use Junior EPI or simple EPI
Norms for the Junior EPI are for ages 7-17, so you should probably use that.
The Junior Eysenck Personality Questionnaire (JEPQ) extends personality assessment to children 7-17 years of age, measuring the same three major dimensions of personality as the adult version. The JEPQ includes a Lie scale to detect a pattern of socially desirable responding.