The Standards, considered best practice in the field of psychometrics [ 30], follow closely the work of American psychologist Samuel Messick [ 31- 33], who viewed validity as a unitary concept with all validity evidence contributing to construct validity.
Use of those common items to construct StARS® is an important factor contributing to its validity.
Although the pack-years variable could be influenced by intensity in nonadditive terms [ 44], our results were consistent across multiple smoking variables, contributing to internal validity.
The consistency of those findings could be interpreted as contributing to the validity of the MDC and MCIC values deriving from the current study.
Nonetheless, the HR estimates computed in our study were adjusted for the most important confounders, contributing to the validity of the estimates.
Contributing to its validity as a qualitative interview tool, the S-PRT was developed through a well-grounded process in which patients developed a rich framework with which to express their often-paradoxical experiences and perceptions.
We conducted a retrospective chart review of EMR data from one PBRN, the Manitoba Primary Care Research Network (MaPCReN), to characterize the various factors contributing to the validity of diagnoses in the database.
Doherty works at Wits University and formerly was a staff member at Partner 1, while Pitayarangsarit still works at Partner 3, giving them an 'insider' status: this insider status was seen as contributing to the validity of the evaluation as they had in-depth knowledge of the partners and were trusted by them.
In this framework all validity contributes to construct validity and exists as a matter of degree, meaning interpretations from scores are more or less valid given a specific context.
Furthermore, the included practices showed great diversity in the kind of practice, practice size and distribution of ethnic minorities, thereby contributing to high external validity.
