Training Optimization and Sport Performance Research Group (GOERD), Sport Science Faculty, University of Extremadura, 10005 Caceres, Spain.
Department of Musical, Plastic and Corporal Expression, Faculty of Sport Sciences, University of Extremadura, 10003 Caceres, Spain.
Int J Environ Res Public Health. 2022 Feb 18;19(4):2384. doi: 10.3390/ijerph19042384.
To carry out research that analyzes performance indicators through observational methodology, it is necessary to have validated tools. The purpose of this study was to design and validate a tool to ascertain the characteristics of the strokes that padel pairs use to reach the net and their consequences in the two subsequent shots of the game. Eleven experts, who had to meet four of the five inclusion criteria established by the researchers, participated in the process. Aiken's V coefficient and confidence intervals were used to analyze content validity and Cronbach's α coefficient to calculate reliability. The adequacy and wording of the sixteen variables initially designed were evaluated. Four variables were eliminated due to obtaining values <0.90 in Aiken's V coefficient in adequacy. The rest of the variables were modified in their wording, according to the qualitative evaluations of the experts, or were considered correct. The reliability of the instrument was acceptable (α = 0.89). The NAPOA instrument is novel, as it is of interest to analyze the characteristics of the strokes that padel players use to achieve the offensive position.
为了开展通过观察方法分析绩效指标的研究，有必要拥有经过验证的工具。本研究的目的是设计和验证一种工具，以确定壁球选手到达网前的击球特点及其在比赛的后续两个击球中的后果。十一位专家参与了这个过程，他们必须符合研究人员设定的五个纳入标准中的四个标准。使用 Aiken 的 V 系数和置信区间来分析内容效度，使用 Cronbach 的 α 系数来计算可靠性。对最初设计的十六个变量的充分性和措辞进行了评估。由于在充分性方面 Aiken 的 V 系数值<0.90，因此有四个变量被删除。根据专家的定性评估，对其余变量的措辞进行了修改，或者认为是正确的。该工具的可靠性是可以接受的（α=0.89）。NAPOA 工具是新颖的，因为它有兴趣分析壁球运动员用于达到进攻位置的击球特点。
