Table I.

Criteria for Classification

Well-established	Published by different investigators or investigatory teams in at least two peer-reviewed journals
	Demonstration of good psychometric properties through inclusion of statistics in at least one peer-reviewed journal
	Utilization and presentation of psychometric properties in at least two chronic illness populations
Approaching well-established	Measure is published in two peer-reviewed journals by at least one investigator/investigatory team
	Demonstration of adequate psychometric properties or statistics reported with presenting the statistical analyses necessary for replication
	Used in at least two chronic illness populations
Promising	Published in at least one peer-reviewed journal
	Presentation of psychometric properties without an explanation of statistical methodology used or moderate support for reliability and validity
	Used in at least one chronic illness population

Note. Adapted from Cohen et al., 2008.