Developmental change and invariance in verbatim and gist memory: Cross-sectional and longitudinal applications of the dual-retrieval model.

The verbatim-decline/gist-sparing principle has been proposed as a universal law of healthy aging. According to that principle, remembering that relies chiefly on verbatim retrieval declines steadily with age, whereas remembering that relies chiefly on retrieval of semantic gist is spared. The most definitive support for this principle comes from studies in which verbatim and gist retrieval were cleanly separated with the parameters of measurement models but that work is restricted to recognition data. Because recall is more sensitive to aging trends, we hypothesized that measurement models of recall might yield a richer picture of verbatim and gist development. To test that hypothesis, we conducted a combined cross-sectional/longitudinal study of the multitrial recall of large samples of younger adults (M = 20 years), younger old adults (M = 76 years), and older old adults (M = 84 years). When the data were analyzed with the dual-retrieval model, the model's verbatim parameters declined substantially between each of these age levels, but they also recovered substantially over learning trials. Crucially, the effects of learning on verbatim retrieval did not decline between the 20s and mid-70s. Unlike recognition, the model's gist parameters displayed robust aging trends, including counterintuitive age improvements: One component of gist retrieval (reconstruction) improved with age during later recall but declined with age during earlier recall, and the other component (familiarity judgment) improved with age during earlier recall. A critical new finding was that verbatim retrieval is much more responsive to learning opportunities than gist retrieval is. (PsycInfo Database Record (c) 2025 APA, all rights reserved).