## 3 Results  
The results are presented in the same order in which the study was designed and in which the OSTIP-C validation was carried out. The following Table 4 presents the relevance of the variables according to the Aiken V coefficient values, with confidence intervals for each of the six variables. The following Table 5 sets out the results for the univocity of variables according to [PERSON]'s V coefficient values, with confidence intervals for each of the six variables. The following Table 6 presents the results for the importance of variables according to the [PERSON]'s V coefficient values, with confidence intervals for each of the six variables. The Table 7 below presents the results of the qualitative evaluations of the variables performed by each expert, based on their own opinion. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{_Importance of Variables_} \\ \cline{2-7}  & \multicolumn{2}{c}{_V_} & \multicolumn{2}{c}{_90\% CI_} & \multicolumn{2}{c}{_95\% CI_} & \multicolumn{2}{c}{_99\% CI_} \\ \cline{2-7}
**Variables** & \(R\) & _Low_ & _High_ & _Low_ & _High_ & _Low_ & _High_ \\ \hline _V1_ & 0.855 & 0.78 & 0.91 & 0.76 & 0.92 & 0.72 & 0.93 \\ _V2_ & 0.974 & 0.92 & 0.99 & 0.91 & 0.99 & 0.88 & 0.99 \\ _V3_ & 0.934 & 0.87 & 0.97 & 0.86 & 0.97 & 0.82 & 0.98 \\ _V4_ & 0.961 & 0.90 & 0.98 & 0.89 & 0.99 & 0.86 & 0.99 \\ _V5_ & 0.908 & 0.84 & 0.95 & 0.82 & 0.95 & 0.79 & 0.96 \\ _V6_ & 0.842 & 0.76 & 0.90 & 0.74 & 0.91 & 0.71 & 0.92 \\ \hline \hline \end{tabular}  
* CI = confidence interval; Low = lower limit; High = upper limit; R = relevance; V = Aiken’s V value.  
\end{table} 
Table 6: Aiken’s V coefficient values and confidence intervals for each of the importance of variables results. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{_Relevance of Variables_} \\ \cline{2-7}  & \multicolumn{2}{c}{_V_} & \multicolumn{2}{c}{_90\% CI_} & \multicolumn{2}{c}{_95\% CI_} & \multicolumn{2}{c}{_99\% CI_} \\ \cline{2-7}
**Variables** & \(R\) & _Low_ & _High_ & _Low_ & _High_ & _Low_ & _High_ \\ \hline _V1_ & 0.829 & 0.75 & 0.89 & 0.73 & 0.90 & 0.70 & 0.91 \\ _V2_ & 0.987 & 0.94 & 1.00 & 0.93 & 1.00 & 0.90 & 1.00 \\ _V3_ & 0.921 & 0.85 & 0.96 & 0.84 & 0.96 & 0.80 & 0.97 \\ _V4_ & 0.947 & 0.86 & 1.00 & 0.81 & 1.00 & 0.71 & 1.00 \\ _V5_ & 0.944 & 0.88 & 0.97 & 0.87 & 0.98 & 0.84 & 0.98 \\ _V6_ & 0.842 & 0.76 & 0.90 & 0.74 & 0.91 & 0.71 & 0.92 \\ \hline \hline \end{tabular}  
* CI = confidence interval; Low = lower limit; High = upper limit; R = relevance; and V = Aiken’s V value.  
\end{table} 
Table 4: Aiken’s V coefficient values and confidence intervals for each of the relevance of variables results. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{_Univocity of Variables_} \\ \cline{2-7}  & \multicolumn{2}{c}{_V_} & \multicolumn{2}{c}{_90\% CI_} & \multicolumn{2}{c}{_95\% CI_} & \multicolumn{2}{c}{_99\% CI_} \\ \cline{2-7}
**Variables** & \(R\) & _Low_ & _High_ & _Low_ & _High_ & _Low_ & _High_ \\ \hline _V1_ & 0.816 & 0.73 & 0.88 & 0.71 & 0.89 & 0.68 & 0.90 \\ _V2_ & 0.921 & 0.85 & 0.96 & 0.84 & 0.96 & 0.80 & 0.97 \\ _V3_ & 0.895 & 0.82 & 0.94 & 0.81 & 0.95 & 0.77 & 0.96 \\ _V4_ & 0.908 & 0.84 & 0.95 &The next Table 8 presents the results of the reliability analysis for the OSTIP-C observational instrument which covers the different phases, relevant actions, and evaluation of the kick movement. The reliability statistics for the OSTIP-C tool, by grouped content, indicated very high levels using Cronbach's alpha, with N of items 18, and a value of 0.901. No error percentage was found, and the results ensured convergent probability based on the criteria presented by [48] whereby the value found in the OSTIP-C tool regarding the nomenclature associated with kappa statistics (0.81-1.00) indicated that the relative strength of agreement was \"Almost Perfect\". The OSTIP-C observation instrument (Table 9) is presented below with all its analysis phases, variables, descriptions, and frame instants of observation (Figure 1).