Alternative variants of CFI and RMSEA for FIML

[Maximilian-Stefan-Ernst]

Zhang, X., & Savalei, V. (2023). New computations for RMSEA and CFI following FIML and TS estimation with missing data. Psychological Methods, 28(2), 263.

suggest alternative ways to compute the RMSEA and CFI following FIML estimation - it would be nice to have those in the package.