Rainey, Larsen, Stephenson and Coursey (1989) Accuracy and certainty judgments of umpires and nonumpires

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Accuracy and certainty judgments of umpires and nonumpires

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CONTRIBUTORS:

	Author:	Rainey, D. W.
	Author:	Larsen, J. D.
	Author:	Stephenson, A.
	Author:	Coursey, S.

JOURNAL:

Journal of Sport Behavior (JSB), 12(1), 12 - 22.

YEAR:

1989

PUB TYPE:

Journal Article

SUBJECT(S):

baseball; umpire; judgement; officiating; evaluation

DISCIPLINE:

No discipline assigned

HTTP:

https://secure.sportquest.com/su.cfm?articleno=243976&title=243976

LANGUAGE:

English

PUB ID:

103-343-375 (Last edited on 2002/02/27 18:44:13 US/Mountain)

SPONSOR(S):

ABSTRACT:
This study explored the accuracy and certainty of 20 umpires and 20 nonumpires who provided judgments about a tactile discrimination task, made calls for videotaped pitches, and rated their certainty for both tasks. There were no differences in accuracy or certainty between the groups on either task. However, on the baseball task accuracy accounted for only 32 percent of the variability in certainty for umpires, while it accounted for 69 percent of the variability in certainty for nonumpires. These results suggest that umpires do not report high certainty about all judgments, but that they may overrepresent their certainty for officiating tasks. Results also provide further confirmation of the observation that umpries have reduced the size of the strike zone. Investigators discuss other extraneous social variables that may influence the performance of baseball umpires.

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