This looks from the title like it would be an interesting paper. Alas, the article (22 page PDF) based on a study of 113 managerial economics students misses the interesting questions and instead goes down the demographics rabbit-hole. I don't care whether the students are Hispanic; I do care whether they've ever had any video production experience (because if they haven't, that would really distract from the learning they might otherwise do). This also shows why the language used in the article is just wrong. The authors frequently refer to the "treatment and control sections". This isn't medicine. You're not doing drug trials. Things like context, previous experience, motivation and measurement matter. Research in education will not progress (and, indeed, will succeed only in misleading) if approached as though education is the cure for some disease.
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