การพัฒนาและประเมินผลโปรแกรมการรู้เท่าทันสื่อ (Media literacy) เรื่อง ผลิตภัณฑ์สุขภาพ: กรณีศึกษาผลิตภัณฑ์เสริมอาหาร ในเด็กนักเรียนชั้นมัธยมศึกษาตอนปลาย

Abstract

The purpose of the study is to development and evaluation of media literacy program on health products: a case study of dietary supplement in high school students. Research design: Quasi- experimental research was performed into 2 phases: phase 1, development of media literacy program, and phase 2 evaluation of media literacy program on health products. Phase I research method: The researcher applied the concept of media literacy and educational trilogy for the development of media literacy program on health products. Four teachers who had experienced and responsible for "Aoryornoi" project and 5 female high school students did focus group discussion for the development learning activities plan. Four learning activities made by flash program were composed of media accessing, analyzing, evaluating and media creating. Learning process was conducted 1 lesson per week, 50-minute lessons per class, total of 4 lessons for a period of I month. Phase II research method: The control group of 37 students and the experiment group of 32 students who were students in grade 11 from each 2 schools performed the media literacy assessment (pre-test). The media literacy assessment used 4 popular dietary supplement cases. The questionnaire was multiple-choice question (4 choices), 4-5 questions per case study. After finishing the media literacy program in experimental group 1 week, students in both groups performed the media literacy assessment (post-test) after the experimental group learned the media literacy program. The data were analyzed by descriptive and inferential statistics, paired t-test and multiple linear regression. Confidence interval was determined at the level of 95.0%. Results: The 32 experimental group students consisted of 28 females (87.5%). Most of them had cumulative GPA higher than 3.51 (43. 75%) and none of the students had cumulative GPA less than 2.51. The 37 control group students consisted of 19 females (51.35%). Most of them had cumulative GPA between 3.01-3.50 (32.43%). Five students (13.51%) had cumulative GPA less than 2.50. Within group analysis, the results showed that the experimental group had a significantly increased media literacy skill (8.06 ± 1.52 vs 10.56 ± 1.58, p=0.000), and the control group had no significantly increased media literacy skill (6.08 ± 2.64 vs 6.54 ± 2.39, p=0.440). Between group analyses by adjusted three confounding variables: gender, cumulative GPA score, and pre-test media literacy score found that the post-test media literacy score of the experimental group was significantly higher than the control group. (10.56 ± 1.58 vs 6.54 ± 2.39, p=0.000) Conclusion: The media literacy program able to improve the media literacy skill among high school students.