When the development of the same participants is tracked across a span of time, the investigation is termed a:
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Answer: C. longitudinal study
Explanation
A longitudinal study tracks the exact same group of participants across an extended period. Researchers gather repeated measurements from identical individuals as they age over time. This research design successfully captures individual developmental trajectories and age-related changes directly. Developmental psychology relies on longitudinal designs to study lifespan changes in cognition and personality. Tracking identical cohorts helps scientists distinguish true aging effects from generational cultural differences. Longitudinal projects require significant time and financial investment to maintain participant retention.
Famous lifespan projects have followed cohorts for decades to uncover predictors of successful aging. Educational researchers track student achievement over multiple school years to evaluate program effectiveness. Public health agencies use longitudinal tracking to study how childhood diet impacts adult health outcomes. Cross-sectional studies compare different age groups at a single point in time rather than tracking individuals. Life history studies typically gather retrospective qualitative narratives rather than systematic prospective quantitative data. Sequential studies combine cross-sectional and longitudinal designs to control for cohort effects specifically.
- Subject
- Psychology
- Category
- Psychology
- Topic
- —
- Difficulty
- medium
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