本研究以二○○四年、二○○五年和二○○六年的世界男排聯賽和世界女排大獎賽的參賽隊伍，總共一千二百九十八位的男、女排球運動選手為研究對象，透過皮爾森相關係數檢定和線性迴歸檢定等方法，旨在瞭解排球運動選手的身高與其跳躍單手摸高的相關情形，而得到如下的結果：一、當今世界一流球隊選手的平均身高和平均跳躍單手摸高，男排運動選手為196.40公分和343.06公分，女排運動選手為182.47公分和303.04公分。二、不論是男排或女排的選手，其身高和跳躍選手摸高之線性迴歸線，皆顯示出正斜率，表示兩者間成呈現出顯著性的正向關係三、在排球運動選手的身高與其跳躍單手摸高間的線性迴歸方程式，男排運動選手：跳躍單手摸高=127.856+1.095×身高；女排運動選手：跳躍單手摸高=54.592+1.362×身高。四、女排運動選手的身高與其跳躍單手摸高之皮爾森相關係數值為0.726，高於男排運動選手的0.568，顯示出女排運動選手的身高與其跳躍單手摸高的關係比男排運動選手更為密切。

The study samples are the 1289 volleyball players of both genders in the 2004, 2005 and 2006 FIVB World League and Grand Prix. The aim is to identify the correlation of body height and jump one hand highest reach among volleyball players. Using Pearson Correlation Coefficient Analysis and Linear Regression Analysis as analyzing tools, the results are as follows: (1) Among the world top players, the body height for male volleyball players is on average 196.4 cm with jump one hand highest reach of 343.06 cm. The body height for female volleyball players is on average 182.47 cm with jump one hand highest reach of 303.04 cm. (2) In both gender groups, the linear regression between body height and jump one hand highest reach has shown a positive slope, indicating a distinctive positive correlation. (3) The linear regression formula for male players is jump one hand highest reach=127.856+1.096x body height. The linear regression formula for female players is: jump one hand highest reach=54.592+1.362x body height. (4) The value in Pearson Correlation Coefficient Analysis is 0.726 for women players, and is higher than the value, which is 0.568, for men. The difference has shown that the correlation between body height and jump one hand highest reach is higher in the women's group than in the men's.