Exact(8)
In a future update of this review, if an appropriate number of papers (i.e. more than 10 papers) evaluated identical interventions and they have been included in a meta-analysis, publication bias will be evaluated using standard funnel plots.
28 Thirdly, readers should be able to assess whether similar but not identical interventions were grouped, which may weaken the interpretability of a network meta-analysis.
The AQIP arm received identical interventions, but also included supplementary interventions that extensively focused on behavior changes in patients and providers.
In addition, methodological transparency is crucial in order to gain insight into why some seemingly identical interventions are effective and others not and when transmitting experiences from one intervention area to another [ 33, 34].
There is an additional point of contention in systematic reviews and meta-analysis that is relevant here, namely how much it is acceptable to combine data from similar but not identical interventions, participants, duration, or outcome.
Moreover, having all pharmacotherapists give reasonably identical interventions with regard to the OCD-symptoms ought to reduce chance variance due to the pharmacotherapist's attitude to and knowledge about CBT.
Similar(51)
To investigate the intra-pair resemblance in the response to PA it is essential that twin pairs participate in an identical intervention.
Each study arm is split into three clusters with identical intervention or control, respectively.
A more rigorous test would be a comparison between the CBM training paradigm and an active control intervention (ie, exposed to identical intervention procedures minus one or more of the active treatment ingredients).
The potential impact of the counseling intervention on the decision to see a dentist is likely to be largely mitigated by the fact that all individuals received an identical intervention.
In a small study comparing two types of benchmarking interventions, 70 community physicians in the USA were randomly assigned to receive a multi-modal quality improvement intervention, including physician-specific benchmarking feedback or an identical intervention plus Achievable Benchmarks of Care (ABC) feedback [ 23].
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