- Framework of problems / Comprehensive
- Overly stringent inclusion criteria affecting external validity
- The challenge of external validity in policy‐relevant systematic reviews: a case study from the field of substance misuse
|Year Of Publishing
Overly stringent inclusion criteria affecting external validity
|Number of systematic reviews included
|Summary of Findings
|The systematic review methods used produced an evidence base that did not inform the development of guidance to the extent that it could have done due to: (i) an emphasis upon internal research validity to produce an evidence base with an emphasis on short-term interventions at the level of the individual; (ii) criteria for appraising the external validity of studies were not developed sufficiently; and (iii) the systematic review of evidence and development of guidance were strongly reliant upon the judgement of reviewers and committee members.
|Did the article find that the problem(s) led to qualitative changes in interpretation of the results?
|Are the methods of the article described in enough detail to replicate the study?