A Comparison of the Effect of Presenting Advanced Organizers in Web-based Instruction

The current research has examined the effect of advanced organizers within web-based instruction on the learning and retention of concepts in chemistry courses. The research method is quasi-experimental with non-equivalent groups and using pre-test and post-test. The results showed that in terms of the level of learning, there was not a significant statistical difference between the students who received advanced organizer (experiment group) and those who did not receive it (control group); however, the amount of retention was significantly greater in the experiment group than in the control group.