Abstract

This note argues, contrary to claims in this journal, that the possible existence of indefinitely many causal factors does not invalidate randomization. The effect of such factors has to be bounded by outcome, and since inference is based on a ratio of between-treatment-group to within-treatment-group variation, randomization remains valid.

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Additional Information

ISSN
1529-8795
Print ISSN
0031-5982
Pages
pp. 452-453
Launched on MUSE
2013-12-27
Open Access
No
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