inclusive, a discussion of these three methods illustrates the complexities involved in deciding whether a psychiatric disorder is dimensional or categorical. The description of the three methods focuses specifically on those aspects and assumptions that can influence the outcome of an analysis either in favor of dimensions or in favor of categories. The comparison of the three methods is covered in the final section, which also includes a review of simulation studies. This is followed by a general discussion. More technical details are provided in the online Appendix (see Supplementary material).
