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February 19, 2026Journal of Communication

Conceptualization, operationalization, and performance of longitudinal studies in communication research: a systematic review

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Authors

JZJonathan J H ZhuCity University of Hong KongWLWei LinAdvanced Radiation Therapy (United States)JGJingwei GaoCity University of Hong Kong

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Implication

Systematic review examines time measurement in longitudinal studies, suggesting implications for communication research.

Key Points

  • This review aims to analyze and categorize longitudinal studies in communication research over 50 years.
  • Conducted a systematic review of SSCI-Communication journals
  • Developed two classification schemes for longitudinal studies
  • Manually coded 1,080 research articles and used computerized keyword scanning
  • Longitudinal studies account for about 9% of publications in the surveyed journals
  • Panel data studies are more common than time-series studies in a 3:2 ratio
  • Three-fourths treat time as an index for causal effects, while a quarter focus on temporal dynamics
  • Longitudinal studies contribute more conceptually and receive more citations than non-longitudinal studies

Cite This Study

Zhu et al. (2025) studied this question.

synapsesocial.com/papers/6996a7d3ecb39a600b3edefahttps://doi.org/10.1093/joc/jqaf047
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