The reliability and validity of discrete and continuous measures of psychopathology: a quantitative review.

@article{Markon2011TheRA,
  title={The reliability and validity of discrete and continuous measures of psychopathology: a quantitative review.},
  author={Kristian E. Markon and Michael Chmielewski and Christopher J Miller},
  journal={Psychological bulletin},
  year={2011},
  volume={137 5},
  pages={856-79}
}
In 2 meta-analyses involving 58 studies and 59,575 participants, we quantitatively summarized the relative reliability and validity of continuous (i.e., dimensional) and discrete (i.e., categorical) measures of psychopathology. Overall, results suggest an expected 15% increase in reliability and 37% increase in validity through adoption of a continuous over discrete measure of psychopathology alone. This increase occurs across all types of samples and forms of psychopathology, with little… CONTINUE READING