Letters Assessing complex interventions

Guidelines perpetuate inappropriate methods

BMJ 2008; 337 doi: https://doi.org/10.1136/bmj.a2473 (Published 11 November 2008) Cite this as: BMJ 2008;337:a2473
  1. David Kernick, general practitioner1
  1. 1St Thomas Health Centre, Exeter EX4 1HJ
  1. su1838{at}eclipse.co.uk

    The guidelines for research in complex systems conflate complex with complicated.1

    Complex systems and interventions are most appropriately viewed as non-linear, which implies that they cannot be understood by reducing them to their component parts. Outcomes …

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