Portable four-choice reaction time test with magnetic tape memory
- Cite this article as:
- Wilkinson, R.T. & Houghton, D. Behavior Research Methods & Instrumentation (1975) 7: 441. doi:10.3758/BF03201557
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A small (20 × 11 × 6 cm), battery-powered, fully portable device is described for administering a four-choice serial reaction time test and recording the results on a standard magnetic tape cassette. The mains-powered decoder through which the tape is subsequently replayed is also described. The main application is the self-administration of the test by the subject in the field, particularly in studies of environmental stress, the data-bearing cassettes being passed to the experimenter for laboratory-based analysis. In preliminary performance trials, the four-choice test appeared to reflect fatigue due to continuous repetitive responding in a way similar to classical, nonportable, multiple-choice serial reaction tests, but over a shorter time scale and with greater internal consistency.