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Peggy Wang

Research interests

Lijuan Peggy Wang's research interests are in the areas of longitudinal data analysis and mixed-effects modeling. She is also interested in psychological and educational measurement. Her current research project involves developing and applying models for multivariate nonnormal data such as longitudinal ceiling data and multivariate zero-inflated count data.


  1. Zhang, Z., & Wang, L. (2008). Methods for evaluating mediation effects: Rationale and comparison. In K. Shigemasu, A. Okada, T. Imaizumi, & T. Hoshino (Eds.), New trends in psychometrics(pp. 595-604). Tokyo: Universal Academy Press.Download
  2. Wang, L., Zhang, Z., McArdle, J. J., & Salthouse, T. A. (2008). Investigating ceiling effects in longitudinal data analysis. Multivariate Behavioral Research, 43(3), 476–496. Download
  3. Wang, L., & McArdle, J. J. (2008). A simulation study comparison of Bayesian estimation with conventional methods for estimating unknown change points. Structural Equation Modeling, 15, 52-74.
  4. McArdle, J. J., & Wang, L. (2008). Modeling age-based turning points in longitudinal life-span growth curves of cognition. In P. Cohen (Ed.), Turning Points Research (pp. 105-128). Mahwah, NJ: Lawrence Erlbaum Associates.
  5. Schwenzer, K. J., & Wang, L. (2006). Assessing moral distress in respiratory care practitioners. Critical Care Medicine, 34(12), 2967-2973.
  6. Ram, N., Chow, S. M., Bowles, R. P., Wang, L., Grimm, K. J., Fujita, F., & Nesselroade, J. R. (2005). Examining interindividual differences in cyclicity of pleasant and unpleasant affect using spectral analysis and item response modeling. Psychometrika, 70(4), 773-790.

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