As a third-grade teacher, you receive the standardized test scores for Mary and learn that she has gotten a stanine of 1 on the spelling subtest and a stanine of 3 on the math subtest. You should conclude that Mary:
a. had below-average performance on the spelling subtest, but above-average performance on the math subtest.
b. performed below grade level on the spelling subtest, but at grade level on the math subtest.
c. performed below the average for her peer group on both subtests.
d. performed above the average for her peer group on both subtests.
Question 2
The textbook author suggests that it is not a good idea to incorporate more than a few extra-credit points into students' grades. Why?
a. Scores on extra-credit projects frequently suffer from low reliability.
b. Incorporating extra-credit work into classroom grades typically affects only the grades of high-achieving students, so it is not worth the time and trouble.
c. The time spent on extra-credit assignments is better spent planning classroom activities.
d. Too many opportunities for extra-credit points allow students who have not met instructional objectives to get good grades.
Antibody techniques. (b) An ELISA to test for the presence of herpes simplex virus (HSV
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