# Development and Reliability of a Street Skateboarding Notational Analysis Framework and Application
## 3 Results
### Reliability
#### 3.2.2 Inter-Rater Reliability
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multirow{2}{*}{**Grouping**} & & \multicolumn{4}{c}{**MAD [95\% CI]a**} \\  & & & \multicolumn{4}{c}{**(\(n\) = \# TAs)b**} \\ \cline{3-6}  & & \(\rm Frame_{TO}\) & \(\rm Frame_{IA\text{-Start}}\) & \(\rm Frame_{IA\text{-End}}\) & \(\rm Frame_{LD}\) \\ \hline \multirow{4}{*}{**Grouping**} & \multirow{4}{*}{Male} & 3.45 [3.25, 3.65] & 4.95 [4.5, 5.41] & 4.15 [3.82, 4.54] & 1.68 [1.53, 1.83] \\  & & (\(n\) = 256) & (\(n\) = 256) & (\(n\) = 256) & (\(n\) = 256) \\  & & Female & 4.22 [4, 4.43] & 3.68 [3.43, 3.95] & 3.04 [2.82, 3.28] & 1.42 [1.26, 1.59] \\  & & (\(n\) = 233) & (\(n\) = 233) & (\(n\) = 233) & (\(n\) = 233) \\ \hline \multirow{4}{*}{**Grouping**} & \multirow{4}{*}{Gird} & 3.91 [3.67, 4.16] & 3.45 [3.04, 3.89] & 3.8 [3.46, 4.13] & 1.47 [1.28, 1.68] \\  & & (\(n\) = 151) & (\(n\) = 151) & (\(n\) = 151) & (\(n\) = 151) \\  & & Slide & 3.65 [3.44, 3.87] & 3.92 [3.42, 4.46] & 2.15 [2.01, 2.31] & 0.97 [0.87, 1.09] \\  & & (\(n\) = 187) & (\(n\) = 187) & (\(n\) = 187) & (\(n\) = 187) \\ \cline{2-6}  & \multirow{4}{*}{Combination Non-} & 3.2 [2.93, 3.45] & 5.84 [4.94, 6.8] & 3.67 [3.11, 4.25] & 1.16 [1, 1.33] \\  & & (\(n\) = 108) & (\(n\) = 108) & (\(n\) = 108) & (\(n\) = 108) \\  & & Non- & 3.99 [3.82, 4.16] & 3.92 [3.7, 4.17] & 3.61 [3.38, 3.83] & 1.67 [1.54, 1.8] \\  & & Combination & (\(n\) = 381) & (\(n\) = 381) & (\(n\) = 381) & (\(n\) = 381) \\ \hline \multirow{4}{*}{**Grouping**} & \multirow{4}{*}{Ledge} & \multirow{4}{*}{–} & 2.61 [2.22, 3.04] & 3.35 [3.03, 3.68] & \multirow{4}{*}{–} \\  & & & (\(n\) = 102) & (\(n\) = 102) & \\  & & & 3.82 [2.42, 5.58] & 2.11 [1.65, 2.61] & \\  & & & (\(n\) = 19) & (\(n\) = 19) & \\  & & Quarterpipe & 4.03 [3.61, 4.42] & 5.79 [5.13, 6.44] & 7.23 [6.34, 8.24] & 3.61 [3.24, 4.04] \\  & & (\(n\) = 78) & (\(n\) = 78) & (\(n\) = 78) & (\(n\) = 75) \\  & & Rail & 4.16 [3.68, 4.64] & 2.38 [2.2, 2.57] & \\  & & Bank & 4.03 [3.81, 4.25] & 5.52 [4.86, 6.29] & 3.19 [2.6, 3.81] & 1.71 [1.47, 1.96] \\  & & (\(n\) = 209) & (\(n\) = 43) & (\(n\) = 43) & (\(n\) = 118) \\  & & Gap & – & 5.48 [4.67, 6.4] & 4.86 [4.05, 5.74] & – \\  & & & (\(n\) = 31) & (\(n\) = 31) & \\  & & Flat & 3.49 [3.27, 3.7] & 5.92 [4.75, 7.33] & 3.69 [2.82, 4.65] & 0.95 [0.86, 1.03] \\  & & (\(n\) = 180) & (\(n\) = 17) & (\(n\) = 17) & (\(n\) = 280) \\  & Roll & 3.73 [3.09, 4.42] & – & – & 1.42 [1.08, 1.75] \\  & & (\(n\) = 22) & – & – & (\(n\) = 16) \\ \hline \hline \end{tabular}  
* TA, trick attempt; TO, take-off; IA, event/interaction; LD, landing. Values presented by skateboarding specific groupings: sex, grind or slide, combination trick, and obstacle type, _including_ all coping tricks (e.g., potential redirection tricks such as xell balls), but _excluding_ redirection tricks (e.g., kick-turns). Corresponding obstacle types determined for respective coded frame selection: \(\rm Frame_{TO}\)\(\sim\) obstacle\({}_{\rm IA\text{-Start}}\)\(\sim\) obstacle\({}_{\rm IA\text{-TA}}\). \(\rm Frame_{LD}\)\(\sim\) obstacle\({}_{\rm IA\text{-T}}\). \(\rm Frame_{LD}\)\(\sim\) obstacle\({}_{\rm IA\text{-D}}\). \(\rm Frame_{LD}\)\(\sim\) obstacle\({}_{\rm IA\text{-D}}\). \(\rm Frame_{LD}\)\(\sim\) obstacle\({}_{\rm IA\text{-D}}\). \(\rm{}^{\rm a}\) Bootstrapped confidence interval (1000 samples). \(\rm{}^{\rm b}\) Number of TAs may vary across grouping and derived features due to missing data from rates and specific trick-type nuances. \(\rm{}^{\rm c}\) Obstacle type corresponds to the TA phase (e.g., \(\rm Frame_{TO}\)\(\sim\) obstacle\({}_{\rm TO}\), \(\rm Frame_{IA\text{-Start}}\)\(\sim\) obstacle\({}_{\rm IA\text{-D}}\), etc.). \(\rm{}^{\rm d}\) Only grind and slide trick types were included, to encompass the majority of TAs involving an obstacle interaction.  
\end{table} 
Table 9: Inter-rater reliability of coded temporal frames (\(\rm Frame_{TO}\), \(\rm Frame_{IA\text{-Start}}\), \(\rm Frame_{IA\text{-End}}\), \(\rm Frame_{LD}\)) from landed trick attempts during the semi-finals round of the Tokyo 2020 Olympics street skateboarding competition.