蕭文龍 部落格 Mac Shiau(blog)

6.   一般論文的信效度要求有哪些？

答：  量表信度部分，主要檢驗個別項目的信度，以多元相關平方(Squared Multiple Correlations, SMC)值作為觀察標準值，理想的SMC值需大於0.5，表示測量指標具有良好的信度。潛在變項組成信度(Composite Reliability, CR)：指構面內部變數的一致性，一般而言，其值須大於0.7 (Hair et al. 2010)。本研究中之潛在變項的組成信度值皆大於0.9，代表構面具有良好的內部一致性。在收斂效度方面，檢驗因素負荷量，個別構面的組成信度以及平均變異數萃取量(Hair et al. 2010; Shiau and Luo 2013)。因素負荷量須大於0.7，各測量構面的組成信度的值須大於0.7 (CR>0.7)建議值，當所有構面平均變異數萃取量的值均大於建議值門檻0.5 (Hair et al. 2010)，則具有其收斂效度。區別效度主要是檢驗測量變項對於不同構面間的鑑別程度。各構面間平均變異數萃取量的平方根值均需大於測量不同構面間之相關係數(Hair et al. 2010; Shiau and Luo 2013; Shiau and Chau 2016；Shiau et al. 2020.)

 請參考：

• Hair, J.F., Black, W.C., Babin, B.J., and Anderson, R.E. 2010. Multivariate data analysis: A global perspective (7th ed.), Upper Saddle River, NJ: Pearson Prentice Hall.
• Shiau, W.-L., and Chau, P. Y. K. 2016. "Understanding behavioral intention to use a cloud computing classroom: Amultiple model-comparison approach," Information & Management (53:3), pp. 355-365. (SSCI, 2015 IF= 2.163) (Web of Science 80 times cited, ESI 1% highcited article)
• Shiau, W.-L., and Luo, M.M. 2013. "Continuance intention of blog users: the impact of perceived enjoyment, habit, user involvement and blogging time," Behaviour & Information Technology (BIT) (32:6), pp. 570-583.
• Shiau, W.-L., Yuan, Y., Pu, X., Ray, S. and Chen, C.C. 2020. "Understanding Fintech continuance: perspectives from self-efficacy and ECT-IS theories," Industrial Management & Data Systems (120:9), pp. 1659-1689.