Langenberg, B., Helm, J.L., Günther, T. and Mayer, A. 2023. Understanding, Testing, and Relaxing Sphericity of Repeated Measures ANOVA with Manifest and Latent Variables Using SEM. Methodology. 19, 1 (Mar. 2023), 60-95. DOI:https://doi.org/10.5964/meth.8415.