Contextual influences on baseball ball-strike decisions in umpires, players, and controls

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MacMahon, Clare and Starkes, J (2008) Contextual influences on baseball ball-strike decisions in umpires, players, and controls. Journal of Sports Sciences, 26 (7). pp. 751-760. ISSN 0264-0414

Abstract

Baseball umpires, players, and control participants with no baseball experience were asked to call balls and strikes for video clips. In a basic judgement task, umpires and players were significantly better at calling pitches than controls. In a direct information task, borderline pitches were presented following clips of definite balls and definite strikes. Participants called target pitches closer to the strike end of the scale when viewed after definite balls than when they followed definite strikes. Similarly, when borderline pitches were shown in different pitch counts, participants called pitches more towards the strike end of the scale when there were three balls in the count (3–0, 3–2). These findings indicate that the standard for evaluation changes based on the context in which stimuli are processed. Moreover, the strength of the contextual factors is illustrated in that the effects were shown in observers with and without experience in the task. Overall, however, umpires had a greater tendency to call strikes, indicating that they may use a norm of ‘‘hastening the game’’.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/3800
DOI 10.1080/02640410701813050
Official URL http://dx.doi.org/10.1080/02640410701813050
Subjects Historical > FOR Classification > 1608 Sociology
Historical > Faculty/School/Research Centre/Department > Centre for Ageing, Rehabilitation, Exercise & Sport Science (CARES)
Keywords ResPubID16469, expertise, decision making, baseball umpiring, sequential and contextual effects
Citations in Scopus 31 - View on Scopus
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