[{"data":1,"prerenderedAt":47},["ShallowReactive",2],{"q-sw-106-2-research-methods-010":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-010","sw-106-2-research-methods-010",106,2,false,10,"信賴區間乃利用樣本統計量（sample statistic）加上誤差的考量，形成數值區間來推論群體的參數（population parameter），下列有關「信賴區間」的敘述，何者錯誤？",{"A":15,"B":16,"C":17,"D":18},"信賴區間的寬窄會受到樣本大小及群體標準差大小的影響","當樣本增大時信賴區間的寬度會變窄","信心水準愈高其信賴區間寬度會愈窄","在常態分配下樣本平均數約有 95%的機會落在群體平均數±1.96 個標準誤之內","C",null,[],"本題考點是信賴區間寬度的影響因素。依推論統計的區間估計原理,信賴區間寬度取決於「臨界值×標準誤」,而標準誤=群體標準差除以樣本數平方根;信心水準愈高,臨界值愈大(95% 用 1.96,99% 用 2.58),區間必然「愈寬」而非愈窄,C 敘述錯誤,本題選錯誤者,故選 C。A 樣本大小與群體標準差都透過標準誤影響區間寬窄,正確;B 樣本增大使標準誤變小、區間變窄,正確;D 常態分配下,樣本平均數約有 95% 的機會落在群體平均數 ±1.96 個標準誤之內,正確。",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？",6,1784109472105]