Endgames Statistical Question Observational Study Design I BMJ 2011; 342 doi: https://doi.org/10.1136/bmj.d1742 (Published 23 March 2011) Cite this as: BMJ 2011;342:d1742 Article Related content Metrics Responses Peer review Related articles Endgames Sampling methods I Published: 02 March 2011; BMJ 342 doi:10.1136/bmj.d1249 Endgames Cohort studies Published: 25 February 2010; BMJ 340 doi:10.1136/bmj.c1002 Endgames Observational study design II Published: 31 March 2011; BMJ 342 doi:10.1136/bmj.d1903 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... Observational study design IIFulltext PDF
