A researcher wishes to increase the score reliability of a reading test being used in a study. The score reliability could be most easily increased by increasing the
a. number of items on the test. c. homogeneity of the group tested.
b. number of persons tested. d. number of types of items on the test.
A
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It is realistic and easy to set up a new program that will meet all the needs assessment of the prospective center families
a. True b. False
The Newkirk family lives in Nebraska and is headed by a single mother with three children. About how much income does Ms. Newkirk need to generate in order for her family NOT to be considered living in poverty?
a. between $8,000 and $10,000 b. between $10,000 and $12,500 c. around $13,500 d. around $17,000 e. around $23,000
As students move to thinking about formulas it supports their conceptual knowledge of how the perimeter of rectangles can be put into general form. What formula below displays a common student error for finding the perimeter?
a) P = l + w + l + w b) P = l + w c) P = 2l + 2w d) P = 2(l + w)
One difference between frequency distributions and normal distributions is that ______.
a. only frequency distributions are based on data collected by researchers b. frequency distributions are based on formulas; normal distributions are based on data c. frequency distributions are represented by parameters; normal distributions are represented by statistics d. normal distributions are more likely to be skewed than frequency distributions