The median is the best measure of central tendency to calculate for what kind of data?
a. Nominal and ordinal
b. Ordinal or interval and ratio with outliers
c. Interval and ratio with no outliers
d. Qualitative
Ans: B
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The left hemisphere of the brain becomes more specialized during the preschool years in which of the following areas?
A. spatial relationships B. music C. reading D. gross motor skills
What is a common symptom of Huntington's disease?
a. rapid fatigue of the muscles b. loss of both sensation and motor control in certain limbs c. twitches, tremors, and writhing that interfere with voluntary movement d. impairment of saccadic eye movements and rapid alternating movements
Midlife adults ________________________
a. stay unemployed longer than young adults after experiencing a job loss b. tend to get a job of higher status and higher pay when they get a new job after being unemployed c. have higher absenteeism rates than young adults due to a weakened immune system with advancing age d. are less satisfied with their jobs than are younger adults
Which of the following statements is true about exempt research?
A. Researchers can decide by themselves that their research is exempt. B. This type of research requires complete informed consent and debriefing for approval to be granted by an Institutional Review Board (IRB). C. Moderate exercise by healthy volunteers best exemplifies this type of research. D. The Institutional Review Board (IRB) at an institution formulates a procedure to allow a researcher to apply for exempt status.