[{"data":1,"prerenderedAt":49},["ShallowReactive",2],{"q-sw-106-2-research-methods-019":3},{"subject":4,"subjectSlug":5,"subjectFullName":4,"question":6,"related":24},"社會工作研究方法","research-methods",{"id":7,"webId":8,"year":9,"session":10,"subject":4,"legacy":11,"number":12,"stem":13,"options":14,"answer":19,"answerNote":20,"images":21,"lawTimestamp":9,"explanation":22,"freq":23},"sw-106-2-社會工作研究方法-019","sw-106-2-research-methods-019",106,2,false,19,"當研究人員在進行變異數分析（ANOVA）時，若組內離均差平方和（within-group sum of squares）變成原來的 2 倍時，在其餘條件都不變的情況下，所計算出來的 F 值會成為原來的多少？",{"A":15,"B":16,"C":17,"D":18},"1\u002F4","1\u002F2","2 倍","4 倍","B",null,[],"本題考點是變異數分析中 F 值的計算結構。依 ANOVA 原理,F=組間均方÷組內均方,而均方=離均差平方和÷對應自由度;當組內離均差平方和變為原來的 2 倍、其餘條件(組間平方和、各自由度)不變時,組內均方變為 2 倍,即 F 值的分母加倍、分子不變,F 值成為原來的 1\u002F2,故選 B。A 1\u002F4 是誤把分母的變化平方;C 2 倍與 D 4 倍則方向相反,誤以為分母變大 F 值也變大,忽略了組內變異代表誤差變異、位居 F 比值的分母,誤差愈大 F 值愈小、愈難達顯著。",1,[25,29,33,37,41,45],{"webId":26,"stem":27,"number":28,"year":9,"session":10},"sw-106-2-research-methods-018","有關分層隨機抽樣（stratified sampling）與集叢取樣法（cluster sampling）中「層」與「集叢」的概念，下列何者正確？",18,{"webId":30,"stem":31,"number":32,"year":9,"session":10},"sw-106-2-research-methods-020","自變項與依變項皆為類別變項時，欲檢定兩變項的獨立性時我們會採用卡方檢定。今若進行交叉分析的自變項有 2 個屬性、依變項有 4 個屬性，試問卡方檢定之自由度為多少？",20,{"webId":34,"stem":35,"number":36,"year":9,"session":10},"sw-106-2-research-methods-017","在進行推論統計時，研究人員無可避免地必須承擔錯誤的風險，名為第一型錯誤（type I error）與第二型錯誤（type II error）。今當顯著水準由 0.05 變更為 0.01 時，犯上述錯誤的風險會如何改變？",17,{"webId":38,"stem":39,"number":40,"year":9,"session":10},"sw-106-2-research-methods-021","若將電話訪問與面對面訪問進行比較，下列何者錯誤？",21,{"webId":42,"stem":43,"number":44,"year":9,"session":10},"sw-106-2-research-methods-016","關於一個質化訪談的完整過程，下列各階段的順序何者正確？",16,{"webId":46,"stem":47,"number":48,"year":9,"session":10},"sw-106-2-research-methods-022","某市政府擬辦理調查，以了解該市老人使用社區照顧關懷據點的比例及使用意願，該調查的母群體為下列何者？",22,1787299241887]