Editing Design of experiments (section)

====Randomized experiments====
{{Main|Random assignment}}
{{See also|Repeated measures design}}
Charles S. Peirce randomly assigned volunteers to a [[blinding (medicine)|blinded]], [[repeated measures design|repeated-measures design]] to evaluate their ability to discriminate weights.<ref name="smalldiff">{{Cite journal| last1= Peirce|first1=Charles Sanders|last2=Jastrow|first2=Joseph |author-link1=Charles Sanders Peirce|author-link2=Joseph Jastrow|year=1885|title=On Small Differences in Sensation|url=http://psychclassics.yorku.ca/Peirce/small-diffs.htm| journal=Memoirs of the National Academy of Sciences|volume=3|pages=73–83}}</ref><ref name="telepathy">of
{{Cite journal|first=Ian |last=Hacking|  author-link=Ian Hacking | title=Telepathy: Origins of Randomization in Experimental Design|journal=[[Isis (journal)|Isis]]|issue=3|volume=79|date=September 1988 |pages=427–451|jstor=234674|mr=1013489 | doi=10.1086/354775|s2cid=52201011}}</ref><ref name="stigler">
{{Cite journal|author=Stephen M. Stigler|title=A Historical View of Statistical Concepts in Psychology and Educational Research| journal=American Journal of Education| volume=101|issue=1|date=November 1992|pages=60–70|jstor=1085417|doi=10.1086/444032
|s2cid=143685203|author-link=Stephen M. Stigler}}</ref><ref name="dehue">
{{Cite journal|author=Trudy Dehue|title=Deception, Efficiency, and Random Groups: Psychology and the Gradual Origination of the Random Group Design|journal=[[Isis (journal)|Isis]]|volume=88|issue=4|date=December 1997|pages=653–673|doi=10.1086/383850|pmid=9519574|s2cid=23526321|url=https://www.rug.nl/research/portal/en/publications/deception-efficiency-and-random-groups(459e54f0-1e56-4390-876a-46a33e80621d).html}}</ref>
Peirce's experiment inspired other researchers in psychology and education, which developed a research tradition of randomized experiments in laboratories and specialized textbooks in the 1800s.<ref name="smalldiff"/><ref name="telepathy"/><ref name="stigler"/><ref name="dehue"/>