When events are classified into mutually exclusive categories on a nominal scale (e.g., whether a behavior is present or absent), the most common descriptive statistic is
A. relative duration.
B. an average (arithmetic mean).
C. relative rank.
D. relative frequency.
D. relative frequency.
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Internal, organization-wide electronic communication networks are called:
a. email b. the Internet c. an intranet d. voice mail systems
Exercise is believed to slow cognitive decline by ______.
a. improving immune functioning b. increasing the availability of glutamate in the synapse c. decreasing the availability of glutamate in the synapse d. increasing blood flow to the whole brain
The EEG is used in sleep research to measure brain wave activity in the
Which of the following is an example of stimulus-response learning task?
A) tracing a figure viewed via a mirror B) recognizing broken drawings C) recalling childhood events that occurred prior to age 9 D) recognizing songs learned in childhood prior to brain damage E) making a classically conditioned eyeblink response