Development and validation of a standardized assessment instrument for discus throwing performance: A reliability study among high school students

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dc.contributor.authorZulkifli
dc.contributor.authorYani, Ahmad
dc.contributor.authorSetiawan, Budi Arif
dc.contributor.authorPardilla, Herli
dc.contributor.authorHenjilito, Raffly
dc.contributor.departmentSin departamento asociado
dc.date.accessioned2026-04-22T14:38:58Z
dc.date.available2026-04-22T14:38:58Z
dc.date.issued2026
dc.description.abstractThis study focused on creating and validating a dependable tool for assessing discus throw performance in secondary school students. The sample comprised 240 students (120 males, 120 females; aged 15-17) from 12 institutions, selected via stratified random sampling for skill and demographic representation. The assessment tool was developed with expert guidance and preliminary testing, incorporating five technical components: starting position, starting swing, movement across the circle, power position, and release-recovery. Statistical methods included the Intraclass Correlation Coefficient (ICC) via a two-way mixed-effects model, Cronbach's alpha for internal consistency, test-retest reliability over two weeks, and Standard Error of Measurement (SEM) with bootstrapping to establish confidence intervals. The overall reliability of the instrument was excellent (ICC=0.89, 95% CI: 0.85-0.93). Notable internal consistency was found (Cronbach's α = 0.87), coupled with strong test-retest reliability (r=0.91, p<0.001). Component analysis indicated the highest reliability in the power position (ICC=0.92) and the lowest in the initial swing (ICC= 0.86). A positive correlation existed between experience level and reliability measures (ICCs from 0.86 to 0.92). Gender analysis revealed comparable reliability for males (ICC=0.88) and females (ICC=0.90). The reliability among diverse components and demographics supports its use in both formative and summative assessments.
dc.formatapplication/pdf
dc.format.extent17
dc.identifier.citationSPORT TK-EuroAmerican Journal of Sport Sciences, 15, 23
dc.identifier.doihttps://doi.org/10.6018/sportk.642311
dc.identifier.eissn2340-8812
dc.identifier.urihttp://hdl.handle.net/10201/227701
dc.languageeng
dc.publisherServicio de Publicaciones. Universidad dde Murcia
dc.relationSin financiación externa a la Universidad
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectDiscus Throwing
dc.subjectReliability Testing
dc.subjectMotor Skill Evaluation
dc.subjectHigh School Athletics
dc.subjectPhysical Education Assessment
dc.subject.odsNo relacionado con ningún objetivo de desarrollo sostenible
dc.titleDevelopment and validation of a standardized assessment instrument for discus throwing performance: A reliability study among high school students
dc.typeinfo:eu-repo/semantics/article
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