Dissertation: Worth 2009

Worth, Michael (5/09) A lifespan developmental perspective on the role of cognitive activities as mediators to normal age-related decline in fluid abilities (Paul Ramirez, Ph.D.; Gary Kose, Ph.D.; Barry Ritzler, Ph.D.)

Cognitive decline in fluid intelligence throughout the aging process has been shown in numerous studies. The current study examined whether engagement in specific activities, in this case chess playing and crossword solving, would have an impact on the rate of decline of these cognitive processes when compared to a no activity group, or when compared to each other. Participants in each group ( N = 192) were administered a battery of standard cognitive measures to determine if any differences were evident. A significant difference was found between chess players and the no activity group on two of the four measures of fluid intelligence. The crossword group did not differ from the control group on any of the fluid measures, but were significantly better on the one measure of crystallized intelligence. No significant results were found when comparing the chess players to the crossword solvers.