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    Title: 探討以電訪資料 及「入選機率調整法」 修正網路調查偏誤的可行性
    Exploring the Use of Telephone Surveys and Propensity Score Adjustments to Correct Web Survey Biases
    Authors: 俞振華
    Yu, Eric Chen-hua
    涂志揚
    Tu, Chih-yang
    Contributors: 選研中心
    Keywords: 網路調查;非隨機樣本;Webographic變數(「網路使用者特徵」變數);入選機率調整法
    Web Survey;Non-random Samples;Webographic Variables;Propensity Score Adjustment
    Date: 2017-09
    Issue Date: 2018-05-15 16:42:08 (UTC+8)
    Abstract: 雖然網路調查已在我們日常生活中隨處可見,但民眾對於網路調查的結果往往半信半疑。對於網路調查最直接的批評即為,網路調查的樣本非來自隨機抽樣程序,為非隨機樣本(Non-random sample)。因此,網路調查的結果往往無法用來推論母體特徵。本研究分析多波「臺灣選舉與民主化研究」(Taiwan’s Election and Democratization Studies, TEDS)計畫中的網路及電話調查平行測試資料,利用同時置於兩種不同調查方式中的所謂「Webographic」問題(或稱「網路使用者特徵」變數),來辨識網路使用者與非使用者的差異處,並藉入選機率調整法(propensity score adjustment, PSA)調整網路調查結果。換言之,本研究將電訪調查結果視為代表「正確結果」的「對照組」(參考樣本),並透過統計模型及結合電訪資料來調整網路調查結果(觀察樣本)。總之,本研究旨在從多個角度驗證PSA結合電訪與網路調查資料的可行性,並提出此項作法的優勢與限制。
    Relation: 政治科學論叢, No.73, pp.81-126
    Data Type: article
    DOI link: http://dx.doi.org/10.6166%2fTJPS.73(81-126)
    DOI: 10.6166/TJPS.73(81-126)
    Appears in Collections:[Election Study Center] Periodical Articles

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