余民寧李仁豪2014-10-272014-10-272006-09-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/13184網路問卷調查方式效果問卷長短多群組樣本均等性檢定Web-based questionnaireSurvey mode effectsLengths of questionnaireTest of multi-groups invariance調查方式與問卷長短對回收率與調查內容影響之研究The Effects of Survey Modes and Lengths of Questionnaire on the Response Rates and the Surveyed Contents