The term “cohorts,” referring to groups of individuals sharing a characteristic, often age or time period, finds wide application in demographic studies, market research, and clinical trials. For instance, researchers might analyze the health outcomes of a birth cohort over several decades.
Cohort analysis provides valuable insights into trends, patterns, and causal relationships within defined populations. By tracking cohorts over time, researchers can discern how specific experiences or exposures influence outcomes. This methodology is crucial for understanding long-term effects and predicting future behaviors. The concept gained prominence in the 20th century with the rise of longitudinal studies, revolutionizing fields like sociology, public health, and epidemiology.