Longitudinal Study

Longitudinal Study - a research design that involves observing the same variables, several times over a period of time.
  • Example, the study by Hewett et al. (1) is a type of longitudinal study called a "cohort study." This study investigated whether excessive knee valgus during landing was a predictor of knee injury risk in adolescent females over the course of a season.
  1. Hewett, T. E., Myer, G. D., Ford, K. R., Heidt, R. S., Colosimo, A. J., McLean, S. G., & Succop, P. (2005). Biomechanical measures of neuromuscular control and valgus loading of the knee predict anterior cruciate ligament injury risk in female athletes A prospective study. The American journal of sports medicine, 33(4), 492-501

Related Terms

  • Cross-Sectional Study
  • Sampling Bias
  • Confounding Variable
  • Survival Analysis
  • Mixed-Effects Model


  • longitudinal panel
  • longitudinal research
  • panel study
  • longitudinal study
  • longitudinal studies