title: Activities, self-referent memory beliefs, and cognitive performance: evidence for direct and mediated relations.
abstract: In this study, the authors investigated the role of activities and self-referent memory beliefs for cognitive performance in a life-span sample. A factor analysis identified 8 activity factors, including Developmental Activities, Experiential Activities, Social Activities, Physical Activities, Technology Use, Watching Television, Games, and Crafts. A second-order general activity factor was significantly related to a general factor of cognitive function as defined by ability tests. Structural regression models suggested that prediction of cognition by activity level was partially mediated by memory beliefs, controlling for age, education, health, and depressive affect. Models adding paths from general and specific activities to aspects of crystallized intelligence suggested additional unique predictive effects for some activities. In alternative models, nonsignificant effects of beliefs on activities were detected when cognition predicted both variables, consistent with the hypothesis that beliefs derive from monitoring cognition and have no influence on activity patterns.
authors.affiliation: School of Psychology, Georgia Institute of Technology, Atlanta, GA 30332, USA. daniela.jopp@psych.gatech.edu
authors.forename: Daniela
authors.initials: D
authors.lastname: Jopp
authors.forename: Christopher
authors.initials: C
authors.lastname: Hertzog
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003071:Cognition / Q000502:physiology*; D003469:Culture; D005260:Female; D006801:Humans; D008019:Life Style; D008297:Male; D008568:Memory; D008875:Middle Aged; D009483:Neuropsychological Tests; D020377:Self Efficacy; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires