Reactive Agility Instruments in Karate Kumite: Aiken Validity

Abstract

Background: Reactive agility test has become one of the most important issues in improving karate skills. Therefore, an instrument is needed to develop the reactive agility test for karate. This study aimed to develop the construction of a reactive agility karate instrument. Methods: This research used mixed qualitative and quantitative methods. The participants are ten experts determined by the evaluation expert and a karate expert or both criteria. The research procedure was divided into three stages. The first stage, document analysis (international journals), was used to develop the construction of reactive agility karate instruments. The second stage was expert validation using the Delphi technique. The third stage was qualitative analysis. It consisted of the suggestion from the expert judgment. Then, the expert analyzed and revised those results until there was no revision of the reactive agility karate instrument, resulting in a coefficient value. This research instrument uses a questionnaire scale of 1 to 4, namely very relevant, relevant, less relevant, and irrelevant. Then, the data analysis used the Aiken formula. This research resulted in the construction of reactive agility karate instruments, namely, the suitability of the test material with foot movements in the karate game has a coefficient value of V 1. The relevant construction for each element of karate agility has a coefficient value of V0.962. The implementation procedure has a coefficient value of V 0.851. The relevant cone distance to the karate foot movement has a coefficient value of V 1. Conclusions: Those items above resulted in a coefficient value of more than 0.70. Indeed, it can be concluded that all experts have very high agreement on the reactive agility karate test items.