Master theses completed in our Lab: Tuesday 12/6 at 12.00

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The effects of self-talk in a golf putting task under the conditions of ego depletion
by Laur Nurkse

 A thesis submitted in Partial Fulfillment of the Requirements for the Degree of European Master of Sport and Exercise Psychology at The University of Thessaly in July 2018

Approved by supervising committee:

Prof. Antonis Hatzigeorgiadis, PhD

Prof. Nikos Comoutos, PhD

Prof. Yannis Theodorakis, PhD

Trikala, June 2018

Abstract
The effects of ego depletion have shown negative consequences on various sport tasks. Recently, self-talk emerged as a successful method to counteract ego depletion in a cognitive task (Gregersen et al., 2017). Thus, the current study aimed at extending this line of research and examined the effects of a self-talk intervention on a golf putting task in a state of ego depletion. Sample consisted of 61 undergraduate students (Mage = 18.59, SD = 1.04). The mixed between-within design with repeated measures experiment was conducted in a single session with four phases. Upon completion of the baseline measurement, participants were randomly assigned into control and experimental groups. Subsequently, both groups went through a training phase, during which the participants of the experimental group received a self-talk training intervention. The ego depletion manipulation took place prior to the final measurement, where participants performed a golf putting task with a weakened self-control strength. The analysis showed a marginal time by group interaction effect, F(1, 39) = 3.89, p = .056. Furthermore, pairwise comparisons revealed that experimental group participants significantly increased their golf putting performance (p < .001), whereas the performance for the control group remained stable (p = .37). The results of the study suggest that self-talk can be a viable method to facilitate sport performance in a state of ego depletion. 

Keywords: self-talk mechanisms, self-talk intervention, golf performance, self-control strength

 "The effects of a self-talk intervention on a divided attention golf task under conditions of ego-depletion"

by Jelle Kooijman-EMSEP

 A thesis submitted in Partial Fulfillment of the Requirements for the Degree of European Master of Sport and Exercise Psychology at The University of Thessaly in July 2018

Approved by supervising committee:

Prof. Antonis Hatzigeorgiadis, PhD

Prof. Nikos Comoutos, PhD

Prof. Yannis Theodorakis, PhD

Trikala, June 2018

Previous research has indicated a negative effect of ego-depletion on various sport performances. However, a recent study using a non-sport attention task indicated that the use of self-talk could partly counteract the negative effects of ego-depletion. The next step in this line of research is to extend the task a sport task in a controlled lab environment. Therefore, the aim of this study is to examine the effects of a self-talk intervention on a divided attention golf task under a state of ego- depletion. A mixed between (experimental vs. control group) and within (before vs. after manipulation) design was used. Participants completed a baseline performance measure, followed by a training period in which the experimental group practiced using self-talk. Subsequently, both groups received an induction of ego depletion. Finally, all groups completed a final divided attention golf-task. Results showed that the experimental group significantly increased their performance on the final measurement compared to the baseline measurement while the control group did not increase their performance. This indicates that the self-talk intervention successfully counteracted the effects of a state of ego-depletion.
 
 
 
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