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Nicholas D. Myers, Deborah L. Feltz, Félix Guillén, and Lori Dithurbide

The purpose of this multistudy report was to develop, and then to provide initial validity evidence for measures derived from, the Referee Self-Efficacy Scale. Data were collected from referees (N = 1609) in the United States (n = 978) and Spain (n = 631). In Study 1 (n = 512), a single-group exploratory structural equation model provided evidence for four factors: game knowledge, decision making, pressure, and communication. In Study 2 (n = 1153), multiple-group confirmatory factor analytic models provided evidence for partial factorial invariance by country, level of competition, team gender, and sport refereed. In Study 3 (n = 456), potential sources of referee self-efficacy information combined to account for a moderate or large amount of variance in each dimension of referee self-efficacy with years of referee experience, highest level refereed, physical/mental preparation, and environmental comfort, each exerting at least two statistically significant direct effects.

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Kim Gammage, Lori Dithurbide, Alison Ede, Blair Evans, Sean Locke, Eric Martin, Desi McEwan, and Kathleen Wilson

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Rachel Arnold, Nicole Bolter, Lori Dithurbide, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin, and Kathleen Wilson

Edited by Kim Gammage

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Rachel Arnold, Nicole Bolter, Lori Dithurbide, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin, and Kathleen Wilson

Edited by Kim Gammage

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Rachel Arnold, Nicole Bolter, Lori Dithurbide, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin, and Kathleen Wilson

Edited by Kim Gammage

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Kim Gammage, Rachel Arnold, Lori Dithurbide, Alison Ede, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin, and Kathleen Wilson

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Kim Gammage, Rachel Arnold, Nicole Bolter, Lori Dithurbide, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin, and Kathleen Wilson

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Kim Gammage, Alyson Crozier, Lori Dithurbide, Alison Ede, Christopher Hill, Sean Locke, Eric Martin, Desi McEwan, Kathleen Mellano, Matthew Stork, and Svenja Wolf

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Kim Gammage, Desi McEwan, Lori Dithurbide, Alison Ede, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin, and Kathleen Wilson

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Kim Gammage, Desi McEwan, Lori Dithurbide, Alison Ede, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin, and Kathleen Wilson