Abstract
PACER has been developed for use with assembly language programs running on a DEC PDP-11/05 machine. The system comprises an Executive and associated routines to perform many of the tasks common to experiment control programs. Attention has been given to the provision of routines to allow the implementation of experimental designs. Experimental variables are referred to asfactors, and the values of these variables are manipulated indirectly through the use of numerical labels, orlevels. Factors are described in tabular form, and means are provided for the independent or joint randomization of the associated levels. Experimental results can then be stored as functions of specified factors and output at the end of a session in a format corresponding to the structure of the experimental design.
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Henry, R. B.PACER Manual and User’s Guide. Department of Psychology, Computer Laboratory, University of Nottingham, 1975.
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Henry, R.B. Implementation of experimental designs and storage of results in the PACER system of on-line control. Behavior Research Methods & Instrumentation 8, 292–298 (1976). https://doi.org/10.3758/BF03201717
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DOI: https://doi.org/10.3758/BF03201717