title: Correlated change in memory complaints and memory performance across 12 years.
abstract: The present study examines whether the relationship between memory complaints and memory performance is better assessed by analyzing the mutual development. Five hundred participants, averaging 62.9 years of age at first measurement, were measured three times over 12 years. After establishing partial strong factorial invariance, correlations between levels and between slopes of memory performance and memory complaints were estimated using second-order latent growth curve models. The relationship between slopes was found to be three times larger than the relationship between levels, indicating that assessing the commonality in change is more informative than assessing the relationship at a given time point.
authors.affiliation: Department of Psychology, University of Zurich, Zurich, Switzerland. a.mascherek@psychologie.uzh.ch
authors.forename: Anna
authors.initials: A
authors.lastname: Mascherek
authors.forename: Daniel
authors.initials: D
authors.lastname: Zimprich
mesh_terms: D000368:Aged; D000375:Aging / Q000502:physiology / Q000523:psychology*; D015331:Cohort Studies; D003627:Data Interpretation, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory / Q000502:physiology*; D008569:Memory Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D011939:Mental Recall; D008875:Middle Aged; D015233:Models, Statistical; D012647:Self-Assessment; D011795:Surveys and Questionnaires; D013997:Time Factors