Endgames Statistical Question Generalisation and extrapolation of study results BMJ 2013; 346 doi: https://doi.org/10.1136/bmj.f3022 (Published 10 May 2013) Cite this as: BMJ 2013;346:f3022 Article Related content Metrics Responses Peer review Related articles Endgames Simple linear regression Published: 12 April 2013; BMJ 346 doi:10.1136/bmj.f2340 Endgames Multiple regression Published: 05 July 2013; BMJ 347 doi:10.1136/bmj.f4373 See more Units of sampling, observation, and analysis BMJ October 09, 2015, 351 h5396; DOI: https://doi.org/10.1136/bmj.h5396 Randomised controlled trials: understanding confounding BMJ September 25, 2015, 351 h5119; DOI: https://doi.org/10.1136/bmj.h5119 Understanding the ecological fallacy BMJ September 21, 2015, 351 h4773; DOI: https://doi.org/10.1136/bmj.h4773 How to read a funnel plot in a meta-analysis BMJ September 16, 2015, 351 h4718; DOI: https://doi.org/10.1136/bmj.h4718 Understanding the Hawthorne effect BMJ September 04, 2015, 351 h4672; DOI: https://doi.org/10.1136/bmj.h4672 Cited by... Multiple regressionFulltext PDF