Behavioral routines in decision making: the effects of novelty in task presentation and time pressure on routine maintenance and deviation

This article examines the role of behavioral routines in decision making. In order to induce routines, participants were confronted with recurrent route decisions in a computer-controlled trucking game, which allows for manipulation of routine acquisition and strength. During the final round of the game, time pressure and novelty in task presentation were varied as between-factors. It was hypothesized that time pressure would increase the likelihood of routine maintenance and novelty would increase the likelihood of deviation. Besides individual choices, response latencies and self-reports were additionally assessed to measure the amount of deliberation during decision making. Results show that time pressure strongly increased the probability of routine maintenance, even though the situation indicated the inadequacy of the routine. In contrast, novelty in task presentation provoked routine deviation and increased deliberation, as evident from response latencies and self-reports. Copyright © 1998 John Wiley & Sons, Ltd.