This study reports the effects of a hypnosis intervention on a professional soccer player who reported low self-efficacy and a negative mood state relative to his soccer performance. Pre- and postintervention data were collected via a Soccer Self-Efficacy Questionnaire (SSEQ) that consisted of 10 items relating to good soccer performance, the Trait Sport Confidence Inventory (TSCI), the Positive and Negative Affect Schedule (PANAS), and a Soccer Performance Measure (SPM). An intervention program consisting of eight hypnosis sessions was conducted. These sessions comprised the presentation of ego-strengthening suggestions. Both visual and statistical analysis revealed substantial increases in trait sport confidence, self-efficacy, positive affect, and soccer performance, as well as a substantial decrease in negative affect over the course of the intervention. The findings of this case study suggest that hypnosis can be used to enhance self-efficacy, affect, and sport performance. A number of practical issues are presented surrounding the use of hypnosis in the context of English soccer and with athletes in general.
Search Results
Jamie B. Barker and Marc V. Jones
Andrew G. Wood, Jamie B. Barker, Martin Turner, and Peter Thomson
seen in single-case designs ( Barker et al., 2013 ). To explore the magnitude of the intervention effectiveness, effect sizes were calculated and interpreted using guidelines and classification of Cohen’s d ( 1988 ), specifically, where M 1 − M 2 indicates the difference between mean group scores
Iva Obrusnikova, Haley M. Novak, and Albert R. Cavalier
). Optimizing behavioral health interventions with single-case designs: From development to dissemination . Translational Behavioral Medicine, 4 ( 3 ), 290 – 303 . PubMed ID: 25264468 doi:10.1007/s13142-014-0258-z Doyle , P.M. , Wolery , M. , Ault , M.J. , & Gast , D.L. ( 1988 ). System of least
Karin Moesch, Andreas Ivarsson, and Urban Johnson
.2307/3090197 Kratochwill , T. , Hitchcock , J. , Horner , R. , Levin , J.R. , Odom , S. , Rindskopf , D. , & Shadish , W. ( 2010 ). Single-case designs technical documentation . What Works Clearinghouse . Retrieved from https://ies.ed.gov/ncee/wwc/Docs/ReferenceResources/wwc_scd.pdf Kroenke , K
Paul R. Ashbrook, Andrew Gillham, and Douglas Barba
-case research designs: Methods for clinical and applied settings ( 2nd ed. ). New York, NY : Oxford University Press . Kratochwill , T.R. , Hitchcock , J. , Horner , R.H. , Levin , J.R. , Odom , S.L. , Rindskopf , D.M. , & Shadish , W.R. ( 2010 ). Single-case designs technical documentation