What are the strengths and weaknesses of longitudinal studies

However, the longitudinal survey also has significant problems, notably in confounding aging and period effects, delayed results, achieving continuity in funding and research direction, and cumulative attrition.Cohort studies are a type of longitudinal study —an approach that follows research participants over a period of time (often many years).There are several ways to deal with the issue of missing.Research that takes the form of a longitudinal study can also be called a longitudinal study design.This involves time and money.It shows variable patterns over time.

This is known as attrition.In longitudinal studies, researchers do not manipulate any variables or interfere with the environment.The data collected is unique.Longitudinal studies employ continuous or repeated measures to follow particular individuals over prolonged periods of time—often years or decades.They require a large sample size.Longitudinal design is used to discover relationships between variables that.

Specifically, cohort studies recruit and follow participants who share a common characteristic, such as a particular occupation or demographic similarity.They require huge amounts of time.