Moreno Arroyo

Diseño y validación de un instrumento de observación de la toma de decisiones en el bloqueo en voleibol

The main aim of study was to design and validate an observational instrument to measure decision-making in the block action of volleyball players in formative stages. The instrument is an adaptation of the GPAI (Oslin, Mitchell, & Griffin, 1998) in which were included the criteria for evaluating decision-making (appropriate or inappropriate) in the action of block. Initially, in the design process, a literature review was conducted to establish the criteria for the observation. Content validity was established on a qualitative level (understanding, reading and relevance of the questions) and quantitative level (global rating scale from 0 to 10), through the agreement and consensus of thirteen experts judges. All items of the final instrument had a rating above .67 in the Aiken`s V coefficient. The instrument developed in this study has content validity to evaluate the decision-making in the block action in volleyball training stages.