Although it is possible to obtain a sample with characteristics that are very different from the population through random sampling, it is more likely that a nonrepresentative sample is the result of ____
a. simple random sampling
b. selection bias
c. stratified selection
d. systematic selection
b
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The Latin-square design controls for
a. order but not sequence b. sequence but not order c. both order and sequence d. neither order nor sequence
Historical evidence indicates that prostitution dates back to the Age of Mesopotamia, or about the 18th century BCE
Indicate whether the statement is true or false
The procedure for computing the discrimination indexes of items on criterion-referenced tests is
the same as that for classroom achievement tests. Indicate whether the statement is true or false
Perception is a process by which
a. environmental stimuli are sensed. b. sensations are assembled into meaningful patterns that represent external events. c. sensations and experiences are stored permanently in the brain. d. many different forms of stimulus energy are converted into electrical signals for use by the nervous system.