Robust mediation analysis based on median regression.

  title={Robust mediation analysis based on median regression.},
  author={Ying Yuan and David P. MacKinnon},
  journal={Psychological methods},
  volume={19 1},
Mediation analysis has many applications in psychology and the social sciences. The most prevalent methods typically assume that the error distribution is normal and homoscedastic. However, this assumption may rarely be met in practice, which can affect the validity of the mediation analysis. To address this problem, we propose robust mediation analysis based on median regression. Our approach is robust to various departures from the assumption of homoscedasticity and normality, including heavy… CONTINUE READING
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