چکیده:
Aim: the aim of current study was the study of the effectiveness of prevention programs of students’ attitude change toward substance abuse and its effective factors. Method: for this purpose، the studies which related to evaluation of prevention program were gathered. For gathering of these researches related keywords were used and search was done in sites and universities dissertations. Finally، the researches which were conformed to the entrance criterions، were selected and considered information for testing of hypothesizes was extracted by reverse questionnaire which provided by authors. Of 20 selected studies proper statistics for calculation of effect size and other required information were recorded and analyzed by CMA2. Results: the findings showed that altogether، prevention programs of substance abuse were successful on students’ attitude change. The pooled effect size was significant. Because of the amount of pooled effect size was placed in range of 0.6-0.7، and then according to Cohen’s opinion is classified as moderate effect size. The results also، showed the variables as having of theoretical base، transactional approach in program presentation، the severity of program، the using of diversity educational strategies in presentation، the using of peer instructors were affected significantly on the effectiveness of programs. Conclusion: For attaining of more effective programs on students’ attitude change toward substance abuse these results should be considered.
خلاصه ماشینی:
In fact, there is an inverse relationship between the interval at which the post-test questionnaire or other measures are collected and the effect size that the program has produced in changing students' attitudes," the results of the statistical test are presented in the table below.
In other words, a greater number of educational sessions contributes more to the effectiveness of the program in changing students' attitudes toward substance abuse," the results of the statistical test are presented in the table below.
In fact, researchers who select the most popular among the subjects and use them during the training create more effective programs in changing students' attitudes," the results of the statistical test are presented in the table below.
In fact, the results of the present research indicate that the greater the distance between the training of the prevention program and the administration of the post-test, the effectiveness of the substance abuse prevention program in changing students' attitudes does not decrease, and if any decrease occurs, it is due to chance and coincidence and nothing else.
In the present meta-analysis, evidence was also presented showing that there is a direct and significant relationship between the number of sessions of the substance abuse prevention program delivery and its effectiveness in changing students' attitudes toward substance abuse.
In the present research, an attempt is made to evaluate the effectiveness of primary prevention programs implemented with the aim of changing students' attitudes in our country through a comprehensive and systematic review using the meta-analysis 2 method.
(
, 
, 
)
