1) what is Independent variable (s)? a) le…

1) what is Independent variable (s)?a) level of IV(s)?2) Between or within subjects for IV(s)3) If 1 IV, is it a true experimental design or quasi experimental design?4) If 2 or more IVs, is it a between-subjects factorial, within-subjects factorial, or mixed factorial designSleep deprivation can be a serious threat to the performance of health care providers. A health researcher wondered if perceived sleepiness varied among firefighters, emergency medical technicians (EMTs), trauma physicians, and trauma nurses. Each participant completed the Epworth Sleepiness Scale where higher scores indicate greater feelings of sleepiness and sleep deprivation, and the researcher compared the scores.

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