تحميل...
Comparison of Research Designs for Two Controlled Trials of Mass Media Interventions
This paper compares two controlled trials of mass media interventions, factors influencing their designs, and design lessons learned from these experiences. Mass media evaluations based on a scientific research model are motivated by gaps in knowledge. The results of such research are intended to se...
محفوظ في:
| المؤلفون الرئيسيون: | , , |
|---|---|
| التنسيق: | Artigo |
| اللغة: | Inglês |
| منشور في: |
2009
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2716042/ https://ncbi.nlm.nih.gov/pubmed/20046992 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1080/19312450902809490 |
| الوسوم: |
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