Thirty years of research on the level of service scales: a meta-analytic examination of predictive accuracy and sources of variability

Psychological Assessment (2014) - Comment
pubmed: 24274046 doi: 10.1037/a0035080 issn: 1939-134x issn: 1040-3590

Mark E. Olver, Keira C. Stockdale, J. Stephen Wormith