 |
【政治學系政治學方法論海外前沿研究演講】How Much Should We Trust Estimates for Multiplicative Interaction Models? Simple Tools to Improve Empirical Practice (我們應多麼信賴交互作用模型？改善經驗實踐的簡單方法)■時間：5月28日（一）上午10：30至中午12：00
■地點：臺大社會科學院院108教師聯誼室（臺大社會科學院大樓1樓）
■講者： 徐軼青教授 (加州大學聖地牙哥分校政治學系)
■主持人：張佑宗主任（臺大政治學系）
★ 一律線上報名，請於5/27中午之前完成報名，我要報名(https://goo.gl/forms/1xO7fUE5drMSELXm1)
★ 本演講使用中文討論英文論文。欲事先閱讀英文論文，請於此處下載。欲複製論文中的統計結果，則於此處下載數據檔。
★ 英文摘要： Multiplicative interaction models are widely used in social science to examine whether the relationship between an outcome and an independent variable changes with a moderating variable. Current empirical practice tends to overlook two important problems. First, these models assume a linear interaction effect that changes at a constant rate with the moderator. Second, estimates of the conditional effects of the independent variable can be misleading if there is a lack of common support of the moderator. Replicating 46 interaction effects from 22 recent publications in five top political science journals, we find that these core assumptions often fail in practice, suggesting that a large portion of findings across all political science subfields based on interaction models are modeling artifacts or are at best highly model dependent. We propose a checklist of simple diagnostics to assess the validity of these assumptions and offer flexible estimation strategies that allow for nonlinear interaction effects and safeguard against excessive extrapolation. These statistical routines are available in both R and STATA
★本系碩班學生如需登錄演講時數，請於演講簽到表簽名，將由系辦統一處理登錄演講時數。
★ 若需學術演講參加證明，請按此下載。填妥相關資料後印出，於演講當天確認無誤後核章。若採事後補發證明，將以當天出席簽到記錄為準，若無簽到記錄，則不補發。
★ 聯絡人：陳聿伶，電話：(02)3366-8450。
|