NCI Research

Current Research Interests

-How statistical information (e.g. variability, sample size, base rates, sampling method) affects people's judgments

-Dual process theory; understanding the interplay between intuitive and logical thinking

-Individual differences in thinking and reasoning



Obrecht, N.A. [1] & Chesney, D. L. (2013). Sample representativeness affects whether judgments are influenced by base rate or sample size. Acta Psychologica, 142, 370-382.

Chesney, D. L. & Obrecht, N.A. [1] (2012). Statistical judgments are influenced by the implied likelihood that samples represent the same population. Memory & Cognition, 40, 420-433.

Obrecht, N. A. [1], Anderson, B, Schulkin, J., & Chapman, G. B. (2012). Retrospective frequency formats promote consistent experience-based Bayesian judgments. Applied Cognitive Psychology 26, 436-440.

Anderson, B.L., Obrecht, N.A., Chapman, G. B., Driscoll, D., & Schulkin J. (2011). Physicians' communication of Down syndrome screening test results: The influence of physician numeracy. Genetics in Medicine, 13, 744-749.

Chesney, D. L. & Obrecht, N.A. (2011). Adults are sensitive to variance when making likelihood judgments. In L. Carlson, C. Hölscher, & T. Shipley (Eds.),  Proceedings of the 33rd Annual Conference of the Cognitive Science Society (3134-3139). Austin, TX: Cognitive Science Society.

Obrecht, N. A., Chapman, G. B., & Suárez, M. T. (2010). Laypeople do use sample variance: The effect of embedding data in a variance-implying story. Thinking & Reasoning, 16, 26-44.

Obrecht, N. A., Chapman, G. B., & Gelman, R. (2009). An encounter frequency account of how experience affects likelihood estimation. Memory & Cognition, 37, 632-643.

Obrecht, N. A., Chapman, G. B., & Gelman, R. (2007). Intuitive t-tests: Lay use of statistical information. Psychonomic Bulletin & Review, 14, 1147-1152.

Student Presentations

Delos Santos, S., Learmonth, A. E., Obrecht, N. A. (2014). Musical experience and mathematical ability. Poster presented at the 2014 meeting of the Eastern Psychological Association, Boston, MA

Sinisi, B. & Obrecht, N. A. (2013). Relationships among empathy, social anxiety, and self-consciousness. Poster presented at the 2013 WPUNJ University Research and Scholarship Day, Wayne, NJ.

Mercedes, B. M., Obrecht, N. A., & Heinzen, T. E. (2013). Intergroup interaction, racism, and racial anxiety. Poster presented at the 2013 WPUNJ University Research and Scholarship Day, Wayne, NJ.



[1]Manuscript supported by a Summer Research Stipend awarded to N. Obrecht by the Research Center for the Humanities and Social Sciences at William Paterson University