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    Development and Evaluation of the PROMIS® Pediatric Positive Affect Item Bank, Child-Report and Parent-Proxy Editions

    The purpose of this study is to describe the psychometric evaluation and item response theory (IRT) calibration of the PROMIS Pediatric Positive Affect item bank, child-report and parent-proxy editions. The in...

    Christopher B. Forrest, Ulrike Ravens-Sieberer… in Journal of Happiness Studies (2018)