The sample variance is computed by dividing SS by ______, whereas the population variance is computed by dividing SS by ______.
A. N; df
B. df; n – 1
C. df; N
D. n – 1; df
Ans: C
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Refer to Exhibit 4-1. International Dictionary of Education
a. clearinghouse for work currently in progress. b. index to established tests and measuring devices. c. includes federal government-sponsored research. d. includes lists of famous educators and national institutions. e. reviews new editions of tests for education, psychology, and industry.
The purpose of strategy instruction is to
a. focus on the process of learning. b. focus on the teaching skills. c. focus on breaking down skills into parts. d. focus on building student background knowledge
Single-blind refers to:
a. The experimenter not knowing which group is the experimental group and which is the control group b. The participants not knowing if they are in the experimental group or the control group c. A procedure that should be implemented in education when possible d. A way to control for sequencing effects
Consider the following true and false item: Deciduous trees always lose their leaves before winter. Which strategy should you use to determine the correct answer?
a. Because that fits with my experiences, it is probably true. b. Because I know nothing about trees, the best strategy would be to say false. c. Because there is an absolute word in the sentence it most likely is false. d. Because I know so little about trees, I would guess it is true, because there are usually more true than false answers on exams.