This article is aimed to investigating the influence of a web quest strategy on achievement, and whether collaborative learning can maximize the effectiveness of a web quest used as a medium in teaching and learning educational psychology among the female students at Al Majmaa University in...

Needle sharing contributes to the spread of the human immunodeficiency virus and other health concerns and remains a persistent problem among injection drug users. We determined whether needle sharing may be related to the discounting of the value of delayed outcomes. Outpatients in treatment...

Based on Kamatas item analysis model (2001), an extension for differential item functioning procedure was developed and the applicability was examined. The Kamatas item analysis model is a type of hierarchical generalized linear model for item analysis, in which items are considered as nested in...