Abstract
Zusammenfassung. Ziel des vorliegenden Artikels ist die teststatistische Überprüfung und Validierung einer deutschsprachigen Version der Referee Self-Efficacy Scale (REFS). Die REFS erfasst im englischsprachigen Original die Selbstwirksamkeit von Schiedsrichterinnen und Schiedsrichtern mit den Subskalen Wissen über das Spiel, Entscheidungsfindung, Druck und Kommunikation. Die Items wurden mit Hilfe der Übersetzung-Rückübersetzung ins Deutsche übertragen. Die Struktur und die psychometrischen Eigenschaften der deutschen Items wurden anhand einer Stichprobe aus 265 deutschsprachigen Fußballschiedsrichterinnen und -schiedsrichtern überprüft. Da die im englischsprachigen Original vorgeschlagene Skalenzuordnung der REFS nach der Übersetzung ins Deutsche nicht replizierbar war, wurden Items mit mangelhaften Skaleneigenschaften aus der deutschsprachigen REFS-Version (REFS-D) ausgeschlossen. Das Resultat der Analysen ist eine Skala mit acht Items, die sich drei Subskalen, Spielumsetzung, Druck und Kommunikation, zuordnen lassen. Die REFS-D weist zufriedenstellende interne Konsistenzen und signifikante mittelhohe Korrelationen mit allgemeiner Selbstwirksamkeit auf. Trotz einiger Einschränkungen stellt die REFS-D als ökonomische Skala einen Ansatzpunkt für zukünftige Forschung dar.
Abstract. The purpose of the present article was to evaluate statistically and validate a German version of the Referee Self-Efficacy Scale (REFS). The English REFS assesses referee self-efficacy and consists of the scales Game Knowledge, Decision-Making, Pressure, and Communication. Data from 265 soccer referees was used to evaluate the structure and psychometric properties of the German items. Since we could not replicate the original dimension structure, we excluded items from the German REFS (REFS-D) that showed poor item characteristics. Analyses resulted in a short REFS-D consisting of eight items, subdivided into three dimensions: game realization, pressure, and communication. Results show acceptable internal consistencies. All three subscales of the REFS-D showed significant moderate correlations with general self-efficacy. Despite some limitations, the REFS-D represents an economic questionnaire and starting point for future research.
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