Transforms estimates obtained with ctmaFit
into LCS (latent change score) terminology.
LCS models can be estimated with CT CLPM, but results have to be transformed. When time intervals vary much
between and within persons, LCS models are virtually impossible to fit. However, CT CLPM models can be
fitted, and the results - after transformation - show what LCS estimates would have been (cf Voelke & Oud,
2015; their terminology to label LCS effects is used in the output created by ctmaLCS)