Well, for one, there was a clear preference for the blocked study schedule, with 68% of participants reporting that they would choose the blocked strategy to study for a test, while only 32% chose the interleaved strategy. Which is interesting, because the research on blocked vs. interleaved practice suggests that in many cases, interleaving is actually the more effective strategy (here’s a great summary of the research on interleaved practice, why and how it works, guidelines for use, and examples of times when blocked may be better).