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How did Casey et al (2011) enhance the applicability of their study?

  1. By using outdated technology

  2. By focusing solely on aggressive participants

  3. By studying a diverse sample over time

  4. By restricting the study to a single cultural group

The correct answer is: By studying a diverse sample over time

Casey et al. (2011) enhanced the applicability of their study by studying a diverse sample over time. This approach allowed the researchers to gather data from various demographics and backgrounds, making the findings more generalizable to the broader population. By following participants over an extended period, they could observe long-term patterns and changes related to inhibitory control and impulse regulation. This longitudinal aspect ensures that the results are not limited to a specific moment in time, further strengthening the relevance of their observations to different phases in individuals' lives and various life contexts. This broad and inclusive methodology plays a crucial role in enhancing the study's ecological validity and usefulness in real-world applications.