A program evaluator for a large school district wants to know how much intelligence varies in the elementary schools. She selects one classroom at each grade level in each elementary school and administers an intelligence test to the children in those classrooms. In order to find out which school has the most consistent intelligence level, which of the following should she calculate for each
school?
a. The mean
b. The standard deviation
c. The sum of the deviations
d. The range
b
You might also like to view...
If you were to take your weight and divide it by the square of your height (w/h2), you would have calculated your ________________. (Hint: your answer should not only include an abbreviation.)
Fill in the blank(s) with correct word
One substance that body cells require for energy production is:
a. sodium b. glucose c. insulin d. serotonin
Any system that provides information about a bodily function is known as
a. a systems loop. c. biosystems reinforcement. b. biofeedback. d. a direct feedback loop.
Angela administered the same personality test on two separate occasions to the same person, but she got very different results the second time. It is likely that Angela's test
a. does not have high validity. c. has high inter-rater reliability. b. does not have high test-retest reliability. d. has no operationally defined variables.