Utilize decision-making scenarios. Consider using them not just in a minor role—for example at the end of a section—but integrated into the main narrative of your learning design.

Determine the most important points you want to get across AND the most important situations in which these points are critical. Then, provide extra repetitions spaced over time on these key points and situations.

By far the researchers' most significant finding was one that simply matched previous research: students who had a more racially diverse group of friends and classmates <em>outside</em> of the study tended to write essays with higher ICs. Again, however, this finding is only a correlation, and cannot on its own show that racial diversity improves learning.