本文以2003年世界盃十五人制橄欖球錦標賽的20個國家為研究對運，將預、複、決賽中，共48場比賽之12項攻防記錄進行因素分析，旨在瞭解現今十五人制橄欖球比賽功防技術的因素構面為何？並探討勝負隊與不同球隊在這些構面上是否有顯著差異。結果發現12項攻防技術共可散成四個因素構面，依序為：（一）團隊攻、防行為；（二）團隊戰術行為；（三）團隊自由意識行為；（四）團隊二次進攻行為，其解釋的變異量依序為22.889%、19.366%、17.063%、11.160%，累積解釋的變異量為70.749%。勝負隊在四個因素構面之得分差異除第一個因素構面達顯著水準(p<.05)其餘三個因素構面皆未達顯著水準。不同球隊在各個因素構面之表現經由單因子變異數分析，僅有「團隊二次進攻行為」達顯著水準(p<.05)。

The study attempts to analyze the 12 categories of offense and defense records found in the totally 48 quarterfinal, semifinal and the final games, played by national teams of 20 countries, of the 2003 Rugby World Cup, with the intension of discovering the factors that determine offense and defense tactics, and deciding whether the winning teams show a significant difference in these dimensions from the losing teams. The results show that the 12 categories of offense and defense records cluster into four factor: 1) team offense and defense action, 2) team tactic action, 3) team free will action, and 4) team second offense action. Their interpretative variances are respectively 22.889%, 19.366%, 7.063%, and 11.160%. The accumulative interpretative variance is 70.749%. Except for the first factor, the difference between winning and loosing teams do not reach significant level (p<.05). For different teams, ANOVA shows that only the factor “team second offense” reaches significant level.