43. 43
結構模式的二階段準則 (Bollen,1989)
1. 重新界定 SR 模型成為 CFA 模型,並讓
所有的因素有相關。
2. View the structural portion of the
SR as a path model.
• 二階段模型估計準則是SEM分析的充份條
件,假如在測量模型下可以正定,那麼整
個模型就會正定。
• 除此之外,尚可了解模型是否有共線性的
問題。
67. 67
SEM相關矩陣的應用
1. Both vars interval: Pearson r
2. Both vars dichotomous:
Tetrachoric correlation
3. Both vars ordinal:
Polychoric correlation
4. One var interval, the other a force
dichotomy:
Biserial correlation
68. 68
SEM相關矩陣的應用
5. One var interval, the other ordinal:
Polyserial correlation
6. One var interval, the other a true
dichotomy: point-biserial
7. Both true ordinal: Spearman rank
correlation or Kendall’s tau
8. Both true nominal:
phi or contingency coefficient
9. One true ordinal, one true nominal:
gamma