PROMIS® Parent Proxy Report Scales for children ages 5–7 years: an item response theory analysis of differential item functioning across age groups

Author: Varni James   Thissen David   Stucky Brian   Liu Yang   Magnus Brooke   Quinn Hally   Irwin Debra   DeWitt Esi   Lai Jin-Shei   Amtmann Dagmar   Gross Heather   DeWalt Darren  

Publisher: Springer Publishing Company

ISSN: 0962-9343

Source: Quality of Life Research, Vol.23, Iss.1, 2014-02, pp. : 349-361

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