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Focused qualitative evaluation presented in the paper (cognitive interviews) adds to the evidence for the measure's face validity, and the comparison of self-report against records adds to the measure's criterion validity[ 16, 17].
Self-reported smoking status was compared to the established cut point (6 ppm) to determine the sensitivity, specificity, and positive and negative predictive values of self-report against BCO, using BCO as the criterion measure.
One Australian study that validated patient self-report against actual Medicare benefit claims found that patients who overestimate recent use of medical services are "telescoping" real but less recent events into the nominated time period and are in fact higher users of health services over the long term [ 31].
The validation of survey self-reports against either retrospective or prospective diaries has been called validation against a "silver" standard (Greenfield et al. 2009 b ).
Test-retest reliability analyses and validation of self-reports against reports from sexual partners suggest however that, despite the potential for biased reporting, self-report measures of condom use do have satisfactory reliability and validity [ 29- 31].
Study limitations include self report of race.
Studies that report development, reliability or validation of a retrospective self report adherence measure against a non-questionnaire measure (such as MEMS, pill counts and clinical markers).
As expected, men have a higher incidence of self reported violence against others (15%) than women (5.5%).
Unfortunately this means there is no ideal against which to judge accuracy of self report.
Youth Self Report Scale.
All individuals were Danes by self report.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com