Question: Locate Original Source 11 Driving impairment due to sleepiness is

Locate Original Source 11, “Driving impairment due to sleepiness is exacerbated by low alcohol in­take.” It is not on the companion website but may be available at http:// the description of how the researchers measured “subjective sleepiness.”
a. Explain how “subjective sleepiness” was measured.
b. Was “subjective sleepiness” measured as a nominal, ordinal, or measurement variable? Explain.

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  • CreatedOctober 22, 2015
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