[{"data":1,"prerenderedAt":48},["ShallowReactive",2],{"q-sw-113-2-research-methods-034":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-113-2-社會工作研究方法-034","sw-113-2-research-methods-034",113,2,false,34,"假設某社會工作者想要探討影響團體凝聚力之可能因素，於是針對北部地區所有社會服務機構正在提供之成長團體為研究對象（總共有 125 個團體），分別蒐集了團體成員人數（X1），半年內舉辦團體的次數（X2），半年內團體成員缺席的總人次（X3），以及每個團體之凝聚力量表分數（Y）等資料。經電腦統計分析後若得到下列之多重迴歸方程式：（假設 Y 的分數越高代表團體凝聚力越強） Ŷ ＝ 16.5 － 4.0×X1 ＋ 2.0×X2 － 3.0×X3 那個因素對於團體凝聚力的影響最強？",{"A":15,"B":16,"C":17,"D":18},"團體成員人數（X1）","半年內舉辦團體的次數（X2）","半年內團體成員缺席的總人次（X3）","無法判斷","D",null,[],"本題考點是多元迴歸中「未標準化係數不能直接比較影響力」。方程式Ŷ＝16.5－4.0X1＋2.0X2－3.0X3中的係數是未標準化迴歸係數,各自變項的測量單位與尺度不同(人數、次數、人次),係數大小受單位影響,不能單憑數值大小(如4.0>3.0>2.0)判定何者影響力最強,必須改看標準化係數(Beta)才能比較,故選D無法判斷。A、B、C皆錯在直接拿未標準化係數的絕對值互比,忽略了各變項單位不一致的問題。",1,[25,29,32,36,40,44],{"webId":26,"stem":27,"number":23,"year":28,"session":23},"sw-106-1-research-methods-001","什麼是社會工作研究的第一步？",106,{"webId":30,"stem":31,"number":10,"year":28,"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":33,"stem":34,"number":35,"year":28,"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":37,"stem":38,"number":39,"year":28,"session":23},"sw-106-1-research-methods-004","關於信效度的說明，下列何者正確？",4,{"webId":41,"stem":42,"number":43,"year":28,"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":45,"stem":46,"number":47,"year":28,"session":23},"sw-106-1-research-methods-006","關於演繹法的說明，何者有誤？",6,1784109498989]