title: Current Sample Size Practices in the Psychometric Evaluation of Patient-Reported Outcomes for Use in Clinical Trials.
authors.affiliation: RTI Health Solutions, Research Triangle Park, NC, USA.
authors.forename: T M
authors.initials: TM
authors.lastname: Coles
authors.affiliation: RTI Health Solutions, Research Triangle Park, NC, USA.
authors.forename: W H
authors.initials: WH
authors.lastname: Chen
authors.affiliation: RTI Health Solutions, Research Triangle Park, NC, USA.
authors.forename: L M
authors.initials: LM
authors.lastname: Nelson
authors.affiliation: RTI Health Solutions, Research Triangle Park, NC, USA.
authors.forename: V
authors.initials: V
authors.lastname: Williams
authors.affiliation: RTI Health Solutions, Research Triangle Park, NC, USA.
authors.forename: L D
authors.initials: LD
authors.lastname: McLeod