According to signal-detection theory, a ____ occurs when we incorrectly report that a signal is present when it is, in fact, absent
a. hit
b. false alarm
c. miss
d. correct rejection
b
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Teaching English sound/symbol correspondences and spelling patterns helps students
a. learn rules that they can then teach their younger siblings b. learn to pronounce difficult words and phrases in English c. decode English words they have never encountered before d. discover the underlying logic of the alphabet in English
Which of the following must also be known in order to compute the standard deviation?
a. mode b. mean c. range d. median
Most experts agree that people have been classified based on race since ancient times
Indicate whether the statement is true or false
Richard has made predictions about the data he will collect for his research study. After his data are collected he compares them to his predictions. He does this to assess which type of validity?
a. External validity b. Internal validity c. Population validity d. Theoretical validity