[{"data":1,"prerenderedAt":47},["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,[25,28,31,35,39,43],{"webId":26,"stem":27,"number":23,"year":9,"session":23},"sw-106-1-research-methods-001","什麼是社會工作研究的第一步？",{"webId":29,"stem":30,"number":10,"year":9,"session":23},"sw-106-1-research-methods-002","執行研究是為了解概念，但我們仍得在研究前，針對概念給予基本描述與簡要定義。請問這個步驟是：",{"webId":32,"stem":33,"number":34,"year":9,"session":23},"sw-106-1-research-methods-003","皮爾森相關係數（r）有幾個特色，下列敘述何者錯誤？",3,{"webId":36,"stem":37,"number":38,"year":9,"session":23},"sw-106-1-research-methods-004","關於信效度的說明，下列何者正確？",4,{"webId":40,"stem":41,"number":42,"year":9,"session":23},"sw-106-1-research-methods-005","當我們要判斷兩個變項間是否有因果關係時，下列那種判斷標準不合適？",5,{"webId":44,"stem":45,"number":46,"year":9,"session":23},"sw-106-1-research-methods-006","關於演繹法的說明，何者有誤？",6,1784109472174]