Dr. Moo would like to find out if there was a significant difference between her patients’ anxiety scores before and after they completed a yoga program. What is the appropriate test to run?
a. independent-samples t-test
b. factorial ANOVA
c. dependent-samples t-test
d. Pearson correlation
Ans: c
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The difference between a field trip to the grocery store and the same trip with a parent is:
a. there is more money to spend with the parent. b. the child’s experience is the major focus in a field trip. c. the group moves faster with the teacher. d. the child is hurried along with the parent.
In a repeated-measures ANOVA, within-groups variability consists of ______ and ______.
Fill in the blank(s) with the appropriate word(s).
About what percentage of twelve- to fourteen-year-olds read at least five times a week?
A) about 75 percent B) about 50 percent C) about 30 percent D) about 20 percent
Looking at the table below, which variables were the most strongly correlated? Work ethic Annual income IQ Work ethic Pearson’s correlation 1.000 .72 .66 Sig. (2-tail) . .001 .000 N 550 550 550 Annual income Pearson’s correlation .72 1.000 .47 Sig. (2-tail) .000 . .03 N 550 550 550 IQ Pearson’s correlation .66 .47 1.000 Sig. (2-tail) .000 .03 . N 550 550 550
A. Work ethic and annual income B. Work ethic and IQ C. Annual income and IQ D. None of the correlations are significant