Existing research posits multiple dimensions of bullying and victimization but has not identified well-differentiated facets of these constructs that meet standards of good measurement: goodness of fit, measurement invariance, lack of differential item functioning, and well-differentiated factors that are not so highly correlated as to detract…

This paper describes the validation of actual and preferred forms of a new classroom environment instrument--the Technology-Rich Outcomes-Focused Learning Environment Inventory (TROFLEI)--using multitrait-multimethod modelling. The 80-item TROFLEI assesses 10 classroom environment dimensions: Student Cohesiveness, Teacher Support, Involvement,…