A doctor concludes from evidence that having yearly physical exams helps people stay healthy. However, she has not considered the risk of a selection factor; thus, the doctor may ignore the possibility that
a. healthy people may schedule exams more often than others.
b. hypochondriacs do the same thing.
c. people who are sick go to the doctor more often.
d. some people have better genes than others.
A
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Kat tells her daughters that whomever does the most work will earn the biggest allowance that week. At the end of the week, her younger daughter has done far more work than her older daughter. Consequently, the younger daughter gets twice the payment as her older sister. "That's not fair! I was saving up for some earrings.". complains the older sister. Which sort of "fairness" is the older sister
upset about? a. procedural justice b. distributive justice c. legal issues d. age discrimination
A variable that is irrelevant to the hypothesis being tested and can alter a researcher’s conclusions is called a(n) ____
a. confounding variable b. independent variable c. dependent variable d. third variable
Some general symptoms of cancer include _______, but do not necessarily mean that the person has cancer
a. increased appetite, hair loss, and sleeplessness b. increase in weight, eating more, and increased desire to sleep c. changes in the skin, weight loss, and fatigue d. dry, itchy skin, and hair loss, and weight gain
Which sequence shows components of neurotransmission in order of most to least abundant in the human brain?
A) synapses, neurons, glial cells B) synapses, glial cells, neurons C) glial cells, synapses, neurons D) glia cells, neurons, synapses