金樹人2014-10-272014-10-271979-06-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/25177國中學生機動水準、工作難度、合作與競爭對工作表現及焦慮狀態之影響Effects of motivation level, task difficulty, cooperation and competition on task performance and anxiety state on task performance and anxiety state