In confirmatory factor analysis, what is the preferred term by Shultz, Whitney, and Zickar (2021) for the item variance not explained by latent factors?

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Shultz, Whitney, and Zickar (2021) prefer the term "residual" for the item variance not explained by latent factors in confirmatory factor analysis. This term is used to describe the portion of variance in observed variables that is not accounted for by the latent variables or factors in the model.

In Confirmatory Factor Analysis, What Is the Preferred Term by Shultz