淡江大學機構典藏:Item 987654321/33858
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 64201/96996 (66%)
造訪人次 : 8002200      線上人數 : 1808
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/33858


    題名: 比較多個處理之群序檢定方法
    其他題名: Group sequential methods for multi-armed trials
    作者: 曾家誼;Tseng, Chia-yi
    貢獻者: 淡江大學統計學系碩士班
    陳怡如;Chen, Yi-ju
    日期: 2005
    上傳時間: 2010-01-11 04:36:31 (UTC+8)
    摘要: 針對臨床試驗的累積資料(accumulated data),常見的期中分析群序方法為Pocock (1977),
    O''Brien 與Fleming (1979)以及Lan 與 DeMets (1983)等三種方法。
    本文將探討Pocock方法 , O''Brien-Fleming方法與三個顯著水準支配函數
    $alpha_{1}^{*}(t)=alpha{t}$ ,
    $alpha_{2}^{*}(10,t)=alpha[(1-e^{-10t})/(1-e^{-10})]$ 及
    $alpha_{3}^{*}(-10,t)=alpha[(1-e^{10t})/(1-e^{10})]$
    所產生的臨界值之差異,並討論其所需的樣本數與固定樣本數之比較,
    同時利用Pocock提出各階段名目顯著水準 $alpha''$
    的概念,計算出不同階段下的群序卡方檢定和群序 $F$ 檢定之臨界值,
    此計算過程比Jennison與Turnbull(1991)所提出的方法較為簡易並且其臨界值結果非常近似。
    此外,本文著重討論 $J$ $(Jgeq3)$
    個處理之群序檢定過程,以實例說明比較三種處理之群序檢定 ,
    同時採用Bonferroni及LSD方法進行多重比較。
    For accumulated data of clinical trials, three common group
    sequential methods were proposed by Pocock (1977), O''Brien and
    Fleming (1979), and Lan and DeMets (1983). The comparison of
    boundaries among Pocock''s method, O''Brien-Fleming''s method and
    three alpha spending functions: $alpha_{1}^{*}(t)=alpha{t}$,
    $alpha_{2}^{*}(10,t)=alpha[(1-e^{-10t})/(1-e^{-10})]$ and
    $alpha_{3}^{*}(-10,t)=alpha[(1-e^{10t})/(1-e^{10})]$ is
    discussed. We adopt the concept of nominal significance level
    $alpha''$ presented by Pocock to calculate the boundaries of group
    sequential chi-squared test and group sequential $F$ test for
    various of overall significance level $alpha$ and testing stages
    $K$, which result in the similar critical values of chi-squared
    test computed by Jennison and Turnbull (1991). The required
    treatment sample size, maximun sample size and average sample size
    for each method are compared with the fixed sample size.
    Furthermore, the group sequential $F$ procedure for multi-armed
    trials and the corresponding multiple comparisons are illustrated
    by an example.
    顯示於類別:[統計學系暨研究所] 學位論文

    文件中的檔案:

    檔案 大小格式瀏覽次數
    0KbUnknown318檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋