You are evaluating two groups, with 10 people per group and formed with random assignment,
to see if listening to music when learning a list of words improves later recall of the words.
Because you will then rank the participants according to the number of recalled words, and you
know the groups are not normally distributed, which of the following tests is most appropriate
to determine group differences?
A) Kruskal-Wallis H Test
B) rank sums test
C) Mann-Whitney U Test
D) chi-square test for two levels of a single nominal variable
E) Wilcoxon T Test
C
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As the price of gas increases, we tend to drive less. This is an example of a ____ correlation.
A. positive B. negative C. perfect D. zero
In his book The Expression of Emotions in Man and Animals, Charles Darwin takes the position that emotions
a. are learned behaviors. b. develop through observation and imitation. c. are maladaptive. d. evolved.
When Kohlberg began his research on moral judgment, who did he study?
a. 72 boys aged 10, 13, and 16 years old b. 72 males aged 10, 20, and 30 years old c. 36 boys and 36 girls aged 10, 13, and 16 years old d. 36 males and 36 females aged 10, 20, and 30 years old
For most people (and nearly all right-handed people), language is heavily lateralized in which hemisphere of the brain?
a. right b. left c. longitudinal d. lateral