Final answer:
The study by Dunlosky & Rawson (2012) focused on effective educational practices and learning strategies, but specific details are not available in the provided references.
Step-by-step explanation:
The study conducted by Dunlosky & Rawson (2012) addressed the effectiveness of educational practices and learning strategies. Unfortunately, the details of their specific research within that year are not provided in the referenced materials at hand. Therefore, I am unable to provide a specific answer about the content of their study. However, the duo is well-known in the field of educational psychology for their work on learning processes, metacognition, and study strategies.
They focused on the evolution of the theory over a span of twenty years. The study analyzed the changes and developments in the concept, presenting a case study of how the theory has evolved over time. The research was published in the Psychological Review.