Final answer:
The 1951 Princeton-Dartmouth football game follow-up study highlighted selective perception and confirmation bias in social psychology, demonstrating how individuals' team affiliations affected their recollections of the game's events.
Step-by-step explanation:
The follow-up study of the 1951 Princeton-Dartmouth grudge match is associated with the big ideas in social psychology, particularly in terms of selective perception and confirmation bias. Participants of the two opposing sides were shown to have differing memories and perceptions of the football game, which were colored by their support for their own team. This experiment best reflects the concept of confirmation bias, where individuals favor information that confirms their preconceptions, and selective perception, where people's expectations affect how they perceive the world.