Testing the effects of a preceding self-control task on decision making in soccer refereeing

Englert, Chris; Dziuba, Anna; Schweizer, Geoffrey (2021). Testing the effects of a preceding self-control task on decision making in soccer refereeing (In Press). Frontiers in neuroscience, 15 Frontiers Research Foundation 10.3389/fnins.2021.638652

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The present study tested the assumption that the momentary level of self-control strength affects the accuracy rates in a sports-related judgement and decision-making task. A total of N = 27 participants rated the veracity of 28 video-taped statements of soccer players who were interviewed by a non-visible referee after a critical game-related situation. In half of the videos, the players were lying and in the other half they were telling the truth. Participants were tested twice: once with temporarily depleted self-control strength and once with temporarily available self-control strength (order counterbalanced; measurements separated by exactly seven days). Self-control strength was experimentally manipulated with the Stroop task. In line with two-process models of information processing, we hypothesized that under ego depletion, information is processed in a rather heuristic manner, leading to lower accuracy rates. Contrary to our expectations, the level of temporarily available self-control strength did not have an effect on accuracy rates. Limitations and implications for future research endeavors are discussed.

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