Table 4. scoring rate, usage rate, and technique effectiveness values for stroke techniques.
  Training matches International competitions β SE p 95%CI
SRsv 0.545 ± 0.093 0.555 ± 0.099 -0.010 0.019 0.607 -0.047, 0.028
URsv 0.222 ± 0.016 0.220 ± 0.028 0.002 0.006 0.732 -0.010, 0.015
TEsv 0.514 ± 0.028 0.517 ± 0.031 -0.003 0.006 0.577 -0.015, 0.008
SRTA 0.444 ± 0.112 0.471 ± 0.104 -0.028 0.025 0.259 -0.076, 0.020
URTA 0.405 ± 0.111 0.470 ± 0.156 -0.064 0.072 0.376 -0.205, 0.077
TETA 0.469 ± 0.057 0.486 ± 0.059 -0.018 0.013 0.179 -0.044, 0.008
SRSM 0.394 ± 0.477 0.288 ± 0.431 0.054 0.229 0.815 -0.395, 0.502
URSM 0.006 ± 0.009 0.003 ± 0.005 0.002 0.003 0.520 -0.004, 0.008
TESM 0.503 ± 0.007 0.501 ± 0.003 0.002 0.002 0.225 -0.001, 0.005
SRFL 0.406 ± 0.327 0.329 ± 0.380 0.068 0.116 0.555 -0.159, 0.295
URFL 0.027 ± 0.020 0.013 ± 0.014 0.013 0.007 0.043 0.000, 0.026
TEFL 0.499 ± 0.012 0.501 ± 0.008 -0.002 0.001 0.017 -0.004, 0.000
SRTW 0.259 ± 0.312 0.321 ± 0.325 -0.107 0.152 0.482 -0.404, 0.191
URTW 0.013 ± 0.019 0.019 ± 0.025 -0.008 0.007 0.280 -0.022, 0.006
TETW 0.500 ± 0.006 0.500 ± 0.010 0.001 0.001 0.532 -0.002, 0.003
SRBP 0.119 ± 0.200 0.104 ± 0.188 0.003 0.107 0.976 -0.207, 0.214
URBP 0.065 ± 0.114 0.084 ± 0.149 -0.020 0.074 0.787 -0.164, 0.125
TEBP 0.494 ± 0.016 0.491 ± 0.025 0.002 0.008 0.747 -0.012, 0.017
SRPU 0.434 ± 0.125 0.454 ± 0.132 -0.020 0.023 0.395 -0.065, 0.026
URPU 0.097 ± 0.033 0.095 ± 0.030 0.002 0.007 0.790 -0.011, 0.015
TEPU 0.492 ± 0.018 0.494 ± 0.017 -0.001 0.003 0.660 -0.006, 0.004
SRTS 0.486 ± 0.175 0.483 ± 0.268 -0.003 0.029 0.920 -0.060, 0.054
URTS 0.080 ± 0.042 0.038 ± 0.025 0.041 0.014 0.004 0.013, 0.070
TETS 0.496 ± 0.018 0.500 ± 0.013 -0.004 0.002 0.071 -0.009, 0.000
SRBL 0.251 ± 0.173 0.241 ± 0.208 0.013 0.047 0.779 -0.079, 0.105
URBL 0.056 ± 0.028 0.043 ± 0.025 0.014 0.008 0.080 -0.002, 0.030
TEBL 0.480 ± 0.015 0.484 ± 0.015 -0.004 0.002 0.026 -0.008,-0.001
The subscripts (e.g., SV, TA, SM, FL, TW, BP, PU, TS, and BL) represent different technique categories. For example, SRSV represents the scoring rate for serves.