This research leave from the fact that performance study of Majors student of Tadris
Natural Sciences Concentration Physics (IPA-FISIKA) State Islamic University Imam Bonjol.
The aims of this research were: (1) Searching ability correlation between content of capability
in Chemistry and religiosity. (2) Differentiating study performance by using model of Trait
Treatment Interaction (TTI) between class with capable student group early is high (learner
fastern) and class with student group ably early lowering (slower learner) by using method
study of autodidact (learning self) and learn habit (teaching regular) added with tutorial. This
research use method of quasy experiment. Technique data collecting through test and
observation, Total of population counted 101 people. But, only 66 students as a sample. The
research conclude : (1) The self-learning was suitable to teach for students with high capability
of knowledge (faster lesrner). (2) The regular teaching + tutorial was suitable to teach for
students with lower capability of knowledge (slower learner). (3) There were correlation
between religiosity and capability of content (chemistry of knowledge). (4) Trait treatment
interaction can be improve the capability of academic performance of students Chemistry
Science.
Keywords: Teaching Models, Trait Treatment Interaction, Chemistry, Students.