[{"data":1,"prerenderedAt":48},["ShallowReactive",2],{"q-sw-107-2-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-107-2-社會工作研究方法-034","sw-107-2-research-methods-034",107,2,false,34,"下列那項不是算術平均數（arithmetic mean）的特徵？",{"A":15,"B":16,"C":17,"D":18},"受極端數值影響","處理資料離散狀況的指標","資料內各個觀察值與算術平均數差距的平方總和會是最小值","資料內各個觀察值與算術平均數差距的總和恆等於零","B",null,[],"本題考點是算術平均數的統計特徵辨識。算術平均數是集中趨勢量數,用來代表資料的中心位置,並非用來處理資料離散狀況的指標——描述離散要用全距、變異數或標準差,故 B 的說法不是平均數的特徵,選 B。A 正確,平均數會受極端值(離群值)拉動而偏移;C 正確,各觀察值與平均數差距的平方總和為最小,此即最小平方特性;D 正確,各觀察值與平均數差距(離均差)的總和恆等於零,三者皆為算術平均數的真正特徵。",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？",6,1784109493767]