The role of time pressure and accountability in moderating the impact of expectancies on judgments of tennis performance

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Deutscher übersetzter Titel:Die Rolle von Zeitdruck und Verantwortlichkeit als Moderatoren des Einflusses von Erwartungen auf die Beurteilung der Tennisleistung
Autor:Buscombe, Richard M.; Greenlees, Iain A.
Erschienen in:International journal of sport psychology
Veröffentlicht:43 (2012), 4, S. 346-363, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0047-0767, 1147-0767
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Erfassungsnummer:PU201306004468
Quelle:BISp

Abstract

Two studies are reported that investigated the role that time pressure and accountability play in moderating expectancy based judgments of a tennis player’s performance. Adopting a between subjects design, male participants (N = 57, N = 62, respectively) with experience of viewing or playing tennis watched video footage of a tennis player displaying either positive or negative body language during the standard warm-up period that precedes the start of a tennis match. An identical period of play was then viewed by all participants with judgments of the player’s performance being recorded on seven Likert-type scales. Time pressure (Study 1) and accountability (Study 2) served as additional independent variables which were manipulated in conjunction with the body language condition during the warm-up phase. In Study 1, between groups analysis of variance demonstrated an interaction between body language and time pressure (p = .001; ηp2 = .18) such that when under time pressure the participants rated the player’s performance more favourably having previously viewed the player displaying positive as opposed to negative body language. In Study 2, between groups analysis of variance evidenced a main effect for body language (p = .02; ηp2 = .10), however accountability was not seen to influence judgments of the player. This work confirms the existence of expectancy effects in sport and indicates that observers may be more susceptible to being influenced by prior held expectations of athletes when judgments are made under time pressure. Verf.-Referat