This dataset was taken from the list of OpenIntro dataset files found at https://www.openintro.org/data/.
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Experiment involving acupuncture and sham acupunture (as placebo) in thetreatment of migraines.
- group - a factor with levels control treatment
- pain_free - a factor with levels no yes
G. Allais et al. Ear acupuncture in the treatment of migraineattacks: a randomized trial on the efficacy of appropriate versusinappropriate acupoints. In: Neurological Sci. 32.1 (2011), pp. 173-175.
Taken from: https://www.openintro.org/data/index.php?data=migraine.