The diagnostic utility of separation anxiety disorder symptoms: an item response theory analysis
Journal of Abnormal Child Psychology (2014) - Comment
pubmed: 23963543  doi: 10.1007/s10802-013-9788-y  issn: 0091-0627  issn: 1573-2835 

Christine E. Cooper-Vince, Benjamin O. Emmert-Aronson, Donna B. Pincus, Jonathan S. Comer