Jeremy Biesanz, Ph.D.

Assistant Professor

Department of Psychology




New Website! (in works):


Class Websites (Password required)


         Psych 218            Analysis of Behavioural Data


         Psych 546E         Applied Multiple Regression


         Psych 569            Personality Seminar


         Psych 359            Advanced Research Methods in Behavioural Sciences


         Psych 546J           Applied Multilevel Models


         Psych 546B          ANOVA


         Psych 546Y         Structural Equation Modeling



Current Research Projects and Computer Code (in R).


Biesanz, J. C., & Schrager, S. M. (2010). Sample Size Planning with Effect Size Estimates. Manuscript under review.

                  Manuscript:                  BiesanzSchrager.pdf

                  Example Code in R:     Power Paper R Syntax.R

                                                       PowerPaper Functions.R


                           Data files for examples:



Notes:  Download all 4 files (the two R syntax files and the two datasets) to the same folder or directory.  All 4 files are text.  Windows sometimes is unhappy with the .R extension.  Run the entire PowerPaper Functions syntax first to load the functions into R.  Then you can run the syntax to recreate the examples from the manuscript.


Biesanz, J. C. (2010). Constructing confidence intervals for standardized effect sizes. Manuscript under revision.  Note: This manuscript will be revised before April, 2010 and a newer version will be uploaded here.

                  Manuscript:         BiesanzCID.pdf

                  Appendix Code:   CIDFunctions.R


Research Background, Programs, and Interests

My original graduate training was in social/personality psychology that I followed with a 2-year postdoctoral fellowship in longitudinal quantitative methodology.  I have lines of research in both quantitative methodology and personality psychology.

My current quantitative research is quite diverse with the unifying theme of focusing on topics that require additional attention – building better quantitative tools for common problems faced by applied researchers.  Recent examples include (1) novel approaches to examining mediational models, (2) sample size planning based on effect size estimates, and (3) generating confidence intervals for standardized effect size estimates based on both fixed and random predictors.

At the same time I have a large active research lab focused on personality and person perception (  Since arriving at UBC I developed the social accuracy model of interpersonal perception (see Biesanz, 2010, Multivariate Behavioral Research) and have collected substantial amounts of labour-intensive data (e.g., round-robin designs) to examine and evaluate this model, assess how accurately we perceive others and are perceived in return, and the process through which accurate interpersonal perception occurs.



Selected Recent Publications


Human, L. J., & Biesanz, J. C. (in press). Target adjustment and self-other agreement: Utilizing trait observability to disentangle judgability and accurate self-knowledge. Journal of Personality and Social Psychology.


Biesanz, J. C., Human, L. J., Paquin, A.-C., Chan, M., Parisotto, K. L., Sarracino, J., & Gillis, R. L. (2011). Do we know when our impressions of others are valid?  Evidence for realistic accuracy awareness in first impressions of personality.  Social Psychological and Personality Science. Published online January 19, 2011. doi: 10.1177/1948550610397211


Human, L. J., & Biesanz, J. C. (2011).  Through the looking glass clearly: Accuracy and assumed similarity in well-adjusted individualsÕ first impressions.  Journal of Personality and Social Psychology, 100, 349-364. doi: 10.1037/a0021850.


Lee-Flynn, S. C., Pomaki, G., DeLongis, A., Biesanz, J. C., & Puterman, E. (2011). Daily cognitive appraisals, daily affect, and long-term depressive symptoms: The role of self-esteem and self-concept clarity in the stress process. Personality and Social Psychology Bulletin, 37, 255-268. doi: 10.1177/0146167210394204


Chan, M., Rogers, K. H., Parisotto, K. L. & Biesanz, J. C. (2011). Forming first impressions: The role of gender and normative accuracy in personality perception.  Journal of Research in Personality, 45, 117-120. doi: 10.1016/j.jrp.2010.11.001


Biesanz, J. C. (2010). The social accuracy model of interpersonal perception: Assessing individual differences in perceptive and expressive accuracy.  Multivariate Behavioral Research, 45, 853-885. doi: 10.1080/00273171.2010.519262


Biesanz, J. C., & Human, L. J. (2010). The cost of forming more accurate impressions: Accuracy motivated perceivers see the personality of others more distinctively but less normatively.  Psychological Science, 21, 589–594. doi: 10.1177/0956797610364121


Biesanz, J. C., Falk, C., & Savalei, V. (2010). Assessing mediational models:  Testing and interval estimation for indirect effects. Multivariate Behavioral Research, 45, 661-701. doi: 10.1080/00273171.2010.498292


Lorenzo, G. L., Biesanz, J. C., & Human, L. J. (2010). What is beautiful is good and more accurately understood: Physical attractiveness and accuracy in first impressions of personality.  Psychological Science, 21, 1777-1782. doi: 10.1177/0956797610388048


Mistry, R. S., Benner, A. D., Biesanz, J. C., Clark, S. L., & Howes, C. (2010). Family and social risk, and parental investments during the early childhood years as predictors of low–income childrenÕs school readiness outcomes. Early Childhood Research Quarterly, 25, 432-449. doi: 10.1016/j.ecresq.2010.01.002


Stanford, E. A., Chambers, C. T., Biesanz, J. C., & Chen, E. (2008).  The frequency, trajectories and predictors of adolescent recurrent pain:  A population–based approach.  Pain, 138, 11-21. doi: 10.1016/j.pain.2007.10.032


Mistry, R. S., Biesanz, J. C., Chien, N., Howes, C., & Benner, A. D. (2008).  Socioeconomic status, parental investments, and the cognitive and behavioral outcomes of low-income children from immigrant and native households.  Early Childhood Research Quarterly, 23, 193-212. doi: 10.1016/j.ecresq.2008.01.002


Biesanz, J. C., West, S. G., & Millevoi, A. (2007).  What do you learn about someone over time?  The relationship between length of acquaintance and consensus and self-other agreement in judgments of personality.  Journal of Personality and Social Psychology, 92, 119-135. doi: 10.1037/0022-3514.92.1.119


Dunn, E. W., Biesanz, J. C., Human, L. J., & Finn, S. (2007).  Misunderstanding the affective consequences of everyday social interactions:  The hidden benefits of putting one's best face forward.  Journal of Personality and Social Psychology, 92, 990-1005. doi: 10.1037/0022-3514.92.6.990


Biesanz, J. C., Deeb-Sossa, N., Papadakis, A. A., Bollen, K. A., & Curran, P. J. (2004).  The role of coding time in estimating and interpreting growth curve models.  Psychological Methods, 9, 30-52. doi: 10.1037/1082-989X.9.1.30


Biesanz, J. C. & West, S. G. (2004).  Towards understanding assessments of the Big Five: Multitrait-Multimethod analyses of convergent and discriminant validity across measurement occasion and type of observer.  Journal of Personality, 72, 845-876. doi: 10.1111/j.0022-3506.2004.00282.x


Mistry, R. S., Biesanz, J. C., Taylor, L. C., Burchinal, M., & Cox, M. J. (2004).  Family income and its relation to preschool childrenÕs adjustment for families in the NICHD study of early child care.  Developmental Psychology, 40, 727-745. doi: 10.1037/0012-1649.40.5.727


West, S. G., Biesanz, J. C., & Kwok, O.-M. (2004).  Within-subject and longitudinal experiments:  Design and analysis issues.  In C. Sansone, C. C. Morf, & A. T. Panter (Eds.), The SAGE handbook of methods in social psychology (pp. 287-312).  Thousand Oaks, CA:  Sage Publications.


Hyde, J. S., Else-Quest, N. M., Goldsmith, H. H., & Biesanz, J. C. (2004).  ChildrenÕs temperament and behavior problems predict their employed mothersÕ work functioning.  Child Development, 75, 580-594. doi: 10.1111/j.1467-8624.2004.00694.x


Biesanz, J. C., West, S. G., & Kwok, O.-M. (2003).  Personality over time:  Methodological approaches to the study of short-term and long-term development and change.  Journal of Personality, 71, 905-941. doi: 10.1111/1467-6494.7106002


Bollen, K. A., & Biesanz, J. C. (2002).  A note on a two-stage least squares (2SLS) estimator for higher-order factor analyses.  Sociological Methods and Research, 30, 568-579. doi: 10.1177/0049124102030004004


Postle, B. R., Shapiro, L. A., & Biesanz, J. C. (2002).  On having oneÕs data shared.  Journal of Cognitive Neuroscience, 14, 838-840. doi: 10.1162/089892902760191063


Biesanz, J. C., Neuberg, S. L., Smith, D. M., Asher, T., & Judice, T. N.  (2001).  When accuracy-motivated perceivers fail:  Limited attentional resources and the reemerging self-fulfilling prophecy.  Personality and Social Psychology Bulletin, 27, 621-629. doi: 10.1177/0146167201275010


Biesanz, J. C., & West, S. G. (2000).  Personality coherence:  Moderating self-other profile agreement and profile consensus.  Journal of Personality and Social Psychology, 79, 425-437. doi: 10.1037/0022-3514.79.3.425


West, S. G., Biesanz, J. C., & Pitts, S. C. (2000).  Causal inference and generalization in field settings:  Experimental and quasi-experimental designs.  In H. T. Reis & C. M. Judd (Eds.), Handbook of research methods in social and personality psychology (pp. 40-84).  New York:  Cambridge University Press.


Biesanz, J. C., West, S. G., & Graziano, W. G. (1998).  Moderators of self-other agreement:  Reconsidering temporal stability in personality.  Journal of Personality and Social Psychology, 75, 467–477. doi: 10.1037/0022-3514.75.2.467