CFA要多少樣本數?

我看了一些文獻，提到CFA樣本數的標準
1. Ding (1995): "if N was bigger (i.e. 200 or more), improper solutions were rare even the p/r = 2 or 3." number of indicator per factor = p/r ratio.
    意指樣本數 > 200時，即使每個因素底下只有2或3個變項，也較不會出現不合適的結果。
2.  Bentler (1987): "with less than 200 subject...The ratio of sample size to number of free parameters may be able to go as low as 5:1... a ratio of at least 10:1 may be more appropriate for arbitrary distributions."
此處的比率是指樣本數比參數數目。樣本數標準為比率 5:1-10:1，但至少要有200位樣本數。
FDT研究的參數數目為10，依據標準需要樣本數200。