Ashby, F.G., & Maddox, W.T. (1994). A response time theory of separability and integrality in speeded classification. Journal of Mathematical Psychology, 38, 423-466. [.pdf]


Ashby, F.G., Maddox, W.T., & Lee, W.W. (1994). On the dangers of averaging across subjects when using multidimensional scaling or the similarity choice model. Psychological Science, 5, 144-151. [.pdf]


Maddox, W.T., Prinzmetal, W., Ivry, R.B., & Ashby, F.G. (1994). A probabilistic multidimensional model of location information. Psychological Research, 56, 66-77. [.pdf]


Ashby, F.G., & Maddox, W.T., (1993). Relations between prototype, exemplar, and decision bound models of categorization. Journal of Mathematical Psychology, 37, 372-400. [.pdf]


Maddox, W.T., Ashby, F.G., (1993).  Comparing decision bound and exemplar models of categorization.  Perception and Psychophysics, 53, 49-7 [.pdf]


Ashby, F.G., & Maddox, W.T., (1992). Complex decision rules in categorization: Contrasting novice and experienced performance. Journal of  Experimental Psychology: Human Perception and Performance, 18, 50-71. [.pdf]


Maddox, W.T., (1992). Perceptual and decisional separabilty. In F.G. Ashby (Ed.), Multidimensional Models of Perception and Cognition. (pp. 147-180). Erlbaum: Hillsdale, NJ. [.pdf]


Ashby, F.G., & Maddox, W.T., (1991). A response time theory of perceptual independence. In J.P. Doignon and J.C. Falmagne (Eds.) Mathematical Psychology: Current developments.  (pp. 389-413). Springer-Verlag. [.pdf]


Ashby, F.G., & Maddox, W.T., (1990). Integrating information from separable psychological dimensions. Journal of Experimental Psychology: Human Perception and Performance, 16, 598-612. [.pdf]