Developing and validating a self-determination educational package and determine its effectiveness on internal / external motivation and amotivation on high school students

The purpose of this study was to develop a self-determination educational package and determine its effectiveness on intrinsic motivation, extrinsic motivation and amotivation of high school students. The research method was semi-experimental with pre-test, post-test with the control group and follow up. At first, self-determination educational package was compiled using library studies, then the rate of content validity ratio (CVR) and content validity index (CVI) was determined by the experts. Using a multistage cluster random sampling method, a 22-members class and a 20-members class of 10th grade empirical science filed were assigned to the experimental group and the control group, respectively, that experimental group had 2 students drop. The experimental group received an educational package in eight 90-minute sessions, and the control group did not receive any education. The findings were analyzed using covariance analysis and repeated measures analysis of variance. The content validity index (CVI) for all goals in the educational package was 0.9 to 1, and the content validity ratio (CVR) for all goals in the educational protocol was 0.8 to 1. The findings indicated that the self-determination educational package affects the intrinsic motivation, extrinsic motivation and amotivation of high school students in Tehran. Moreover, no meaningful difference between post-test and follow-up was detected, which reveals the stability of learning effects. self-determination educational package has the potency to promote intrinsic and extrinsic motivation, reduce amotivation in high school students and improving quality of learning.