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Longitudinal Study

lon-jih-TYOO-dih-nul STUD-ee

/ˌlɒndʒɪˈtjuːdɪnəl ˈstʌdiː/

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Syllable breakdown

longitudinalstudy

Dictionary meaning

Research design following the same subjects over an extended period — tracking changes over time; contrasted with cross-sectional studies (one time point); the Harvard Study of Adult Development has followed participants since 1938, finding social connection is the strongest predictor of healthy aging

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