Peer pressure is a critical factor affecting adolescents' choices, often leading to decisions that prioritize social conformity over personal benefit. A survey of adolescents (n=108, mean age=15.5 years) was administered to measure how peer pressure impacts decision-making in various social scenarios, particularly focusing on situations modeled by game theory concepts. The findings reveal that peer pressure significantly influences adolescents to make decisions that align with group expectations, even when such choices may not be individually optimal. The analysis indicates that students frequently choose to conform to peer expectations, which supports game theory predictions about cooperative and competitive behaviors in social dilemmas. The role of peer dynamics played in shaping adolescents’ decision-making process was suggested. The need for measures that can help adolescents develop better decision-making skills under peer pressure was highlighted. Valuable insight was provided for educators, parents, and policy-makers aiming to support adolescents in navigating complex social interactions.