How do we determine the mode in a distribution?
What will be an ideal response?
We can easily determine the mode from a frequency distribution table of a data set by looking at the score that occurs most often in the frequency column.
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Dr. Brown designs an experiment to test the effects of a new memory drug. Half the participants will receive a placebo and half will receive the actual drug, but neither the participants nor the researchers administering the drug will be informed which is the placebo. Dr. Brown has designed:
a. an unethical experiment b. a double-blind research study c. a single-blind research study d. a study that will maximize participant expectancy effects
Which technique provides detailed images of activity both near the surface and below the surface of the brain by detecting the subatomic particles emitted by weakly radioactive glucose as it is consumed by the brain?
a. MANSCAN b. PET scan c. MRI d. CT scan
Which statement is TRUE regarding the frequency of sleep disorders in the U.S.?
a. ?Sleep disorders are very rare. b. ?Sleep disorders are not common, but many people have serious problems with sleep. c. ?Almost everyone will suffer from a sleep disorder at some point in his or her life. d. ?At this time, sleep disorders are so ill-defined by science, the frequency is unknown.
Which of the following is a disadvantage to the two-factor theory of intelligence?
a. The single intelligence score is not predictive of anything. b. It does not take into account other kinds of intelligence. c. People get credit for being intelligent in several different domains. d. The intelligence quotient (IQ score) is based on a general intelligence factor.