A new model is presented that explains reaction
time fluctuations in prolonged work tasks. The model
extends the so-called Poisson-Erlang model and can
account for long-term trend effects in the reaction time
curve. The model is consistent with Spearman’s hypothesis
that inhibition increases during work and decreases
during rest. Predictions concerning the long-term
trend were tested against data from the Bourdon-Vos cancellation test. The long-term trend in the mean
and in the variance was perfectly described by the
model. A goodness-of-fit test comparing frequency
distributions of observed reaction and simulated reaction
times was also supported by the model. Index
terms: concentration, continuous work, distraction, inhibition,
prolonged work, reaction time, response
Van der Ven, A. H, Smit, J. C & Jansen, R. W. (1989). Inhibition in prolonged work tasks. Applied Psychological Measurement, 13, 177-191. doi:10.1177/014662168901300209
Van der Ven, Ad H. G. S.; Smit, J. C.; Jansen, R. W. T. L..
Inhibition in prolonged work tasks.
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