Material & Method: This study was a semi experimental design. The study sample consisted of 200 students that were selected by stratified random method and divided into two groups of lecture (N=100) and poster Presentation (N=100). Data collection instrument was a questionaire. After administration of pretest in both groups, the first group was taught by lecturing accompanied with a booklet. For the second-group some posters on the bulletin board of the college were provided and then after three weeks the subjects completed the questionnaire as post-test. The data were analyzed by descriptive and inferential statistics (idependent and paired t-test, MC Nemar test).
Result: The results of the paired t-test indicated that, using two methods of teaching, lecturing (P<0.001) and poster presentation (P<0.001) improved the knowledge of the subjects toward HIV/AIDS at pretest compared to post-test. Comparing the two methods, results that there was a significant difference between attitude level in the two groups lecturing (P<0.0001) and poster presentation (P<0.002). The independent t-test showed a significant difference in the mean scores of knowledge (P<0.001) and attitude (P<0.001).
Conclusion: This study indicated that health education programs can lead to increase health knowledge and improving attitude regarding AIDS among students.
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