Explore the third part of an introductory lecture series on Cognitive Science presented by Dr. Shalin at the AI Institute at UofSC. Delve into key topics such as epistemology, individual differences, and consensus in the field. Examine the role of Behavioral Psychology and various metrics used in cognitive research. Learn about practical examples and research methods, including thinkaloud protocols, focus group opinions, and qualitative research approaches. Understand the importance of aggregation questions in cognitive studies. This comprehensive lecture, lasting 1 hour and 33 minutes, provides a thorough recap of previous content and concludes with a summary of the covered material, offering a solid foundation in Cognitive Science principles and methodologies.