Arab Educational Information Network

The study aimed at investigating the effect of using a differentiated instruction-based program to improve EFL preparatory stage students' reading comprehension skills and self-efficacy. The study adopted the quasi-experimental design. The participants of the study were (forty) second year preparatory school students from Ahmed Saad preparatory school, Met Ghamr, Al Daqahlia Governorate, Egypt. The researcher utilized different instruments to collect data such as a reading comprehension skills checklist, a reading comprehension skills test and a Self-efficacy scale. The data obtained were statistically treated through the SPSS program. The findings of the study revealed that the program based on differentiated instruction had a positive effect on developing second year preparatory students' reading comprehension skills and self-efficacy. (Published abstract)