Longitudinal Survey Research
Longitudinal survey research collects structured questionnaire data from the same individuals (or units) at two or more points in time. Unlike a one-shot cross-sectional survey, this design captures change, stability, and temporal ordering of variables — enabling researchers to track trajectories, test causal sequences, and distinguish cohort effects from aging effects within a quantitative framework.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. · ISBN 978-0761922452
- Lynn, P. (Ed.). (2009). Methodology of Longitudinal Surveys. Wiley. · ISBN 978-0470018712
Curated claims
Claims persisted in the evidence ledger, each with its own assessment.
This view does not invent a claim assessment when the ledger has none.
Related methods
Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.