Dr. Johnson has been with the Department of Statistical Science since 2000. His background is in statistics and quantitative psychology with an emphasis on psychometric models and behavioral statistics. His research includes methodological and theoretical research on the use of statistics in behavioral research, as well as collaborative work with researchers in psychology, business, economics, and natural resources.
Recent methodological research:
Johnson, T. R. & Bodner, T. E. (in press) Posterior predictive checks for tetrad subsets for covariance structures of measurement models. Psychological Methods.
Johnson, T. R. & Kuhn, K. M. (in press) Bayesian Thurstonian models for ranking data using JAGS. Behavioral Research Methods.
Budescu, D. V. & Johnson, T. R. (2011). A model-based approach for the analysis of the calibration of probability judgments. Judgment and Decision Making, 6, 857-869.
Johnson, T. R. & Bolt, D. M. (2010). On the use of factor-analytic multinomial logit item response models to account for individual differences in response style. Journal of Educational and Behavioral Statistics, 35, 92-114.
Bolt, D. M. & Johnson, T. R. (2009). Addressing score bias and differential item functioning due to individual differences in response style. Applied Psychological Measurement, 33, 335-352.
Recent applied research:
Camp, M. J., Rachlow, J. L., Woods, B. A., Johnson, T. R., & Shipley, L. A. (2013). Examining the functional components of cover: Concealment and visibility in shrub-steppe habitat. Ecosphere, 4.
DeMay, S., Becker, P., Edison, C., Rachlow, J., Johnson, T., & Waits, L. (in press). Evaluating DNA degradation rates in faecal pellets of the endangered pygmy rabbit. Molecular Ecology Resources.
Kuhn, K. M., Johnson, T. R., & Miller, D. (2013). Applicant desirability influences reactions to discovered resume embellishments. International Journal of Selection and Assessment, 21, 111-120.
Woods, B. A., Rachlow, J. L., Bunting, S. C., Johnson, T. R. (in press). Effects of fire and conifer encroachment on habitat for pygmy rabbits. Journal of Rangeland Ecology and Management.
Camp, M. J., Rachlow, J. L., Woods, B. A., Johnson, T. R., & Shipley, L. A. (2012).\ When to run and when to hide: The influence of cover and distance to refugia on perceptions of predation risk. Ethology, 118, 1010-1017.
Watson, P. & Johnson, T. (2012). Federal fishery policy and the geographic distribution of commercial U.S. West Coast fish landings: Insights from the 2003 federal groundfish permit buyback. Marine Resource Economics, 27, 289-301.