Our chances of making a Type II error
a. increases with lower levels of alpha.
b. is made when we accept the alternative hypothesis.
c. decreases as a decreases.
d. results only if a test is very powerful.
e. None of the above are correct.
Ans: a
Ans: e
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Preschoolers are ready to strike out on their own
a. True b. False
The National Reading Panel identified all of the following elements of reading in their studies of scientifically based
reading instruction except a. phonemic awareness. b. phonics. c. fluency. d. vocabulary. e. reading speed.
A balanced language development program in the primary years will be characterized by
A) goals related to the five aspects of language knowledge. B) goals related to only vocabulary development and spelling. C) a task-centered approach. D) a learner-centered approach.
What does a histogram show?
A. A histogram is a graph in which values of observations are plotted on the horizontal axis, and the frequency with which each value occurs in the data set is plotted on the vertical axis. B. A histogram is a graph in which values of observations are plotted on the horizontal axis, and their density is plotted on the vertical axis. C. A histogram is a graph in which levels of the independent variable are plotted on the horizontal axis, and the mean of observations is plotted on the vertical axis. D. A histogram is a graph in which values of one variable are plotted against values of a different variable.