Behavioral genetics, evolution, evolutionary psychology, individual differences, statistics, probability, linear systems theory, and computers.
B.A., Dartmouth, Psychology, 1961.
Ph.D., Stanford, Statistics, 1965.
Genetic influences on behavior, in L. Nadel (Ed.), Encyclopedia of Cognitive Science, Macmillan Publishers Limited, 2002, 354-360.
(With K. G. Noble and M. J. Farah) Neurocognitive correlates of socioeconomic status in kindergarten children, Developmental Science, 2005, 8, 74-87.
A very simple model for declining mean fitness, Journal of Bioeconomics, 2005, 7, 157-160.
(With Michael T. Purkey, Marc S. Levine, Brandon Prendes, and Natasha Mirza), Predictors of aspiration pneumonia following radiotherapy for head and neck cancer, Annals of Otology, Rhinology & Laryngology, 2009, 118, 811-816.
Markov Processes and Learning Models, Academic Press, 1972; Elsevier Digital Edition, 2009.
Other web documents:
Evolutionary Response to Natural Selection in a Large Population: an Interactive Grapher for the simplest model.
Models with Selection on Both Viability and Fertility (Fecundity): Introduction and Interactive Grapher. These models predict declining population mean fitness under certain conditions.