Todd McKerchar, Ph.D., BCBA-D

Education

B.S., University of Florida, Psychology, 1998
M.A., University of Kansas, Human Development, 2002
Ph.D., University of Kansas, Behavioral Psychology, 2006
NIDA Postdoctoral Fellow, University of Vermont, 2006–2007
Board Certified Behavior Analyst-Doctoral (BACB, Inc.), 2007-present

Specialty Areas

Experimental Analysis of Behavior
Behavioral Economics

Courses Taught

Behavior Analysis Lab (PSY 221)
Professional Behavior (PSY 505)
Conceptual Foundations of Behavior Analysis (PSY 511)

Research Interests

Hyperbolic discounting
Consumer choice

Service and Professional Commitments

Board of Editors (2010–present), The Psychological Record
Board of Editors (2016–2019), Journal of the Experimental Analysis of Behavior
Tutorial Coordinator (2016–present), Society for Quantitative Analyses of Behavior
Elections/Nominations Chair (2016–present), American Psychological Association (Division 25)
Member-at-Large (2016–2019), American Psychological Association (Division 25)

Peer-Reviewed Publications (since 2009)

Harman, M., Kodak, T., & McKerchar, T. L. (2020). Effects of reward magnitude frames on measures of delay discounting in a hypothetical money scenario. Journal of the Experimental Analysis of Behavior, 114, 193-202. https://doi.org/10.1002/jeab.620

McKerchar, T. L., & Mazur, J. E. (2019). Tests of an indifference rule in variable-delay and double-reward choice procedures with humans. Journal of the Experimental Analysis of Behavior, 111, 387–404. https://doi.org/10.1002/jeab.521

Franck, C. T., Koffarnus, M. N., McKerchar, T. L., & Bickel, W. K. (2019). An overview of Bayesian reasoning in the analysis of delay-discounting data. Journal of the Experimental Analysis of Behavior, 111, 239–251. https://doi.org/10.1002/jeab.504

McKerchar, T. L., Kaplan, B. A, Reed, D. D., Suggs, S. S., & Franck, C. T. (2019). Discounting environmental outcomes: Temporal and probabilistic air-quality gains and losses. Behavior Analysis: Research & Practice, 19, 273–280. http://dx.doi.org/10.1037/bar0000138

Kaplan, B. A., Amlung, M., Reed, D. D. Jarmalowicz, D. P., McKerchar, T. L., & Lemley. S. M. (2016). Automating scoring of delay discounting for the 21- and 27-item monetary choice questionnaires. The Behavior Analyst, 39, 293–304. https://doi.org/10.1007/s40614-016-0070-9

McKerchar, T. L., & Mazur, J. E. (2016). Human choices between variable and fixed rewards in hypothetical variable-delay and double-reward discounting procedures. Journal of the Experimental Analysis of Behavior, 106, 1–21. https://doi.org/10.1002/jeab.214

Kaplan, B. A., Reed, D. D., & McKerchar, T. L. (2014). Using a visual analogue scale to assess delay, social, and probability discounting of an environmental loss. The Psychological Record, 64, 261–269. https://doi.org/10.1007/s40732-014-0041-z

McKerchar, T. L., Pickford, S., & Robertson, S. R. (2013). Hyperboloid discounting of delayed outcomes: Magnitude effects and the gain-loss asymmetry. The Psychological Record, 63, 441–451. https://doi.org/10.11133/j.tpr.2013.63.3.003

McKerchar, T. L., & Renda, C. R. (2012). Delay and probability discounting in humans: An overview. The Psychological Record, 62, 817–834.https://doi.org/10.1007/BF03395837

McKerchar, T. L., Morris, E. K., & Smith, N. G. (2011). A quantitative analysis and natural history of B. F. Skinner’s coauthoring practices. The Behavior Analyst, 34, 75–91. https://doi.org/10.1007/BF03392236

Washio, Y., Higgins, S. T., Heil, S. H., McKerchar, T .L., Badger, G. J., Skelly, J. M., & Dantona, R. L. (2011). Delay discounting as a predictor of treatment response among cocaine-dependent outpatients. Experimental and Clinical Psychopharmacology, 19, 243–248. https://doi.org/10.1037/a0023617

McKerchar, T. L., Green, L., & Myerson, J. (2010). On the scaling interpretation of exponents in hyperboloid models of delay and probability discounting. Behavioural Processes, 84, 440–444. https://doi.org/10.1016/j.beproc.2010.01.003

McKerchar, T. L., Green, L., Myerson, J, Pickford, T. S., Hill, J. C., & Stout, S. C. (2009). A comparison of four models of delay discounting in humans. Behavioural Processes, 81, 256–259. https://doi.org/10.1016/j.beproc.2008.12.017

Recent Conference Presentations

Cleveland, J. D., & McKerchar, T. L. (May 2021). Bayesian updating and credible intervals: An application to delay discounting. Poster presented at the annual meeting of the Society for Quantitative Analyses of Behavior.

McKerchar, T. L., & Mazur, J. E. (May 2021). Consumer choices with variations in item price, delay, and opportunity cost. Poster presented at the annual meeting of the Society for Quantitative Analyses of Behavior.

McKerchar, T. L., & Mazur, J. E. (May 2019). Tests of an indifference rule in variable-delay and double-reward choice procedures with humans. Invited presentation given at the Society for the Quantitative Analyses of Behavior, Chicago, IL.

McKerchar, T. L., & Mazur, J. E. (April 2018). Discounting by humans in variable-delay and double-reward choice procedures. Invited presentation given at the Four Corners Association for Behavior Analysis, Park City, UT.

McKerchar, T. L., & Mazur, J. E. (November 2017). How humans make choices between variable and fixed delays and one and two rewards. Invited presentation given at the Midwest Association for Behavior Analysis, Milwaukee, WIS.

McKerchar, T. L., & Mazur, J. E. (February 2017). Do humans, like nonhumans, prefer variable over fixed rewards? Invited presentation given at the California Association for Behavior Analysis, Anaheim, CA.

McKerchar, T. L. (February 2017). What is a K value? A workshop on delay discounting. Workshop given at the California Association for Behavior Analysis, Anaheim, CA.

McKerchar, T. L., & Mazur, J. E. (February 2016). Human choices between variable and fixed rewards in hypothetical discounting procedures. Invited presentation given at the Winter Conference on Animal Learning and Behavior, Winter Park, CO.

McKerchar, T. L., Mazur, J. E., Marshall, T. K., Cumming, J. F., & McDougale, C. B. (May 2015). A test of the economic concept of fungibility: Temporal discounting of money and gift certificates. Paper presented at the annual meeting of the Association for Behavior Analysis, San Antonio, TX.

McKerchar, T. L. (April 2015). Choice and behavioral decision making: Discounting phenomena. Invited keynote given at the annual meeting of the Behavioral Sciences Conference of the North, University of Alaska, Anchorage.