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A longitudinal study (or longitudinal survey, or panel study) is a research design that involves repeated observations of the same variables (e.g., people) over long periods of time (i.e., uses longitudinal data). It is often a type of observational study, although it can also be structured as longitudinal randomized experiment. [1]
The Genetic Studies of Genius, later known as the Terman Study of the Gifted, [1] is currently the oldest and longest-running longitudinal study in the field of psychology. . It was begun by Lewis Terman at Stanford University in 1921 to examine the development and characteristics of gifted children into adultho
A popular repeated-measures design is the crossover study. A crossover study is a longitudinal study in which subjects receive a sequence of different treatments (or exposures). While crossover studies can be observational studies, many important crossover studies are controlled experiments.
Cross-sequential study: Groups of different ages are studied at multiple time points; combines cross-sectional and longitudinal designs; Research in psychology has been conducted with both animals and human subjects: Animal study; Human subject research
Klaus Warner Schaie (February 1, 1928 - February 7, 2023) was an American social gerontologist and psychologist best known for founding the Seattle Longitudinal Study in 1956. The Seattle Longitudinal Study took a 'life span' approach to aging and cognition, studying subjects from birth through the life course.
The experience sampling method (ESM), [1] also referred to as a daily diary method, or ecological momentary assessment (EMA), is an intensive longitudinal research methodology that involves asking participants to report on their thoughts, feelings, behaviors, and/or environment on multiple occasions over time. [2]
A retrospective cohort study, also called a historic cohort study, is a longitudinal cohort study used in medical and psychological research. A cohort of individuals that share a common exposure factor is compared with another group of equivalent individuals not exposed to that factor, to determine the factor's influence on the incidence of a ...
The Grant Study at the Laboratory of Adult Development in the Department of Psychiatry at Brigham and Women's Hospital, a Harvard Medical School affiliate, is conducting a longitudinal study of human adult development, by following two groups of individuals as they age (268 Harvard graduates and 456 males from inner-city Boston). The study has ...