Validity and Reliability of Integrated Digital-Based Jump Power Meter Test Instrument for Measuring Limb Muscle Power
Abstract
Exercise evaluations and measurements are critical. Tests to measure leg muscle power have generated subpar results, prompting the development of an integrated digital-based jump power meter (JPM) instrument. Before using this method, it must be field-tested. The goal of this study was to assess the validity and reliability of the JPM test-retest procedure. The descriptive quantitative research method was used, while data was collected based on the test method. Volleyball players aged 17-20 with weights ranging from 50 kg to 75 kg and heights ranging from 160 cm to 177 cm took part in the study. Pearson's product-moment analysis was used to test the validity of the data, while Cronbach's alpha analysis was used to test the reliability. Each of the male and female players' validity and reliability test results showed a coefficient value greater than 0.9. Based on these findings, the JPM test instrument has nearly perfect validity and reliability. Therefore, the creation of the JPM can facilitate the activities of testing, measuring, and evaluating sports for athletes and coaches, resulting in improved athlete performance.
Keywords: validity, reliability, jump power meter, limb muscle power.
https://doi.org/10.55463/issn.1674-2974.49.4.40
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