title: Cognitive longitudinal predictors of older adults' self-reported IADL function.
abstract: OBJECTIVE
  To examine basic and everyday cognitive predictors of older adults' self-reported instrumental activities of daily living (IADL).
  
  
  METHODS
  Basic and everyday cognitive predictors of self-reported IADL were examined in a sample of healthy, community-dwelling older adults (n = 698) assessed over 5 years of measurement.
  
  
  RESULTS
  Multilevel longitudinal analyses revealed linear and quadratic change trends for self-reported IADL function, with steeper declines at higher ages. Within-person, when participants exhibited lower cognitive performance, they also reported more IADL impairment. Everyday cognition remained a significant unique predictor of self-reported IADL after controlling for attrition, resampling effects, temporal gradients, and baseline levels and changes in demographic, sensory, functional, and basic cognitive measures.
  
  
  CONCLUSIONS
  By itself, everyday cognition appears to be an important predictor of self-reported IADL, and maintains a unique predictive contribution after many covariates are controlled. Future research should consider the inclusion of everyday cognitive measures in functional assessment batteries.
authors.affiliation: University of Florida, Gainesville, FL, USA.
authors.forename: Anna
authors.initials: A
authors.lastname: Yam
authors.forename: Michael
authors.initials: M
authors.lastname: Marsiske
mesh_terms: D000203:Activities of Daily Living / Q000523:psychology*; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000523:psychology*; D003071:Cognition / Q000502:physiology*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D055361:Multilevel Analysis; D057566:Self Report; D012959:Socioeconomic Factors
keywords: aging; everyday cognition; instrumental activities of daily living (IADL)