Pragmatism rather than perfection: for example, according to Glasgow this study chose to broadly define the criteria necessary for study participation – ‘we made hardly any exclusions at the patient level,’ Glasgow says. Using a broad, general sample of adults allowed quickly the study to accrue participants. 3. Use existing study networks: instead of building new partnerships or research configurations in order to perfectly control the environments in which analysis took place, the analysis thought we would use existing research systems and chose thoroughly which study elements would be standardized across these treatment centers and which would be allowed to differ.
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