A student received a score of 85 on a classroom test where the mean was 70 and the standard deviation was 10 . The test was found to have a reliability coefficient of .64 . Which of the following statements would correctly express the accuracy of the student's obtained score? There are
a. 50 chances out of 100 that the true score is included by the range of scores from 72 to 78.
b. 68 chances out of 100 that the true score is included by the range of scores from 75 to 95.
c. 68 chances out of 100 that the true score is included by the range of scores from 79 to 91.
d. 75 chances out of 100 that the true score is included by the range of scores from 79 to 91.
e. 95 chances out of 100 that the true score is included by the range of scores from 79 to 91.
Question 2
Choose the type of evidence (a-c) that would be of primary importance for the validity of the following tests. An end-of-year test in junior high school science
a. evidence based on content
b. evidence supporting construct
c. evidence based on relationship to other variables
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