The 10-Item Positive and Negative Affect Schedule for Children, Child and Parent Shortened Versions: Application of Item Response Theory for More Efficient Assessment
Journal of Psychopathology and Behavioral Assessment (2012) - Comment
doi: 10.1007/s10862-011-9273-2  issn: 0882-2689  issn: 1573-3505 

Chad Ebesutani, Jennifer Regan, Ashley Smith, Steven Reise, Charmaine Higa-McMillan, Bruce F. Chorpita