Content deleted Content added
m →References: Typo fixing, removed: unused_data (2) using AWB |
m Journal cites, added 1 PMID, added 1 PMC using AWB (11761) |
||
Line 109:
| url = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1743807/pdf/v013p00153.pdf
| doi = 10.1136/qshc.2003.009480
| pmid=15069225
| pmc=1743807
}}</ref><ref>{{cite book
| last = Angrist
Line 128 ⟶ 130:
==Empirical evidence that randomization makes a difference==
Empirically differences between randomized and non-randomized studies,<ref>{{cite journal|doi=10.1002/14651858.MR000034.pub2|author=Anglemyer A, Horvath HT, Bero L|title=Healthcare outcomes assessed with observational study designs compared with those assessed in randomized trials|journal=Cochrane Database Syst Rev|date=April 2014|pmid=24782322|volume=4|pages=MR000034}}</ref> and between adequately and inadequately randomized trials have been difficult to detect <ref>{{cite journal|doi=10.1002/14651858.MR000012.pub3 |vauthors=Odgaard-Jensen J, Vist G, etal |title=Randomisation to protect against selection bias in healthcare trials.|journal=Cochrane Database Syst Rev|date=April 2011|pmid=21491415|pages=MR000012}}</ref>
.<ref>{{cite journal|doi=10.1186/1745-6215-15-480|author=Howick J, Mebius A|title=In search of justification for the unpredictability paradox|journal=Trials|year=2014|volume=15|pmid=25490908|pages=480}}</ref>
==See also==
| |||