1) a b+ b c+ c d f 2) male female - wikispacesnotes+p1-14.pdf · unit l- descriptive statistics ......
Post on 06-Mar-2018
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(meaningful)
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(also percentages)
1) A B+ B C+ C D F
2) Male Female
3)
4)
confounded if only (a) and (e) but because of the presence of (b), (c), and (d) it is a good experiment.
Placebo effect a beneficial effect, produced by a placebo drug or treatment, that cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient's belief in that treatment.
Hawthorne Effect the alteration of behavior by the subjects of a study due to their awareness of being observed.
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