A number that characterizes the "middleness" of an entire distribution is _____
a. a measure of central tendency
b. a measure of variability
c. an inferential statistic
d. the standard deviation
a
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Ordinarily, people use only about 10 percent of their brain
a. True b. False Indicate whether the statement is true or false
What do we call the state of a neuron when it is not firing a neural impulse?
a) action potential b) resting potential c) myelination signal d) transmission impulse
What is one limitation of the experimental method?
A. Limited control of variables B. Cannot demonstrate cause and effect C. Does not use random assignment D. For ethical or practical reasons, some variables cannot be tested
The segregation of friendships according to gender occurs __________.
A. in the United States only B. only among separate racial groups C. in almost all societies D. when boys are assigned to one classroom, and girls are assigned to another