For 15-24-year-olds in the U.S., between 1960 and 1990
a. suicide rates more than doubled
b. suicide rates remained stable
c. suicide rates declined by 25%
d. suicide rates declined by 50%
e. suicide was the leading cause of death
A
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Tied scores often present a problem in distribution-free tests. The most common way to deal with them in a Mann-Whitney test is to
a. flip a coin. b. use a random number table. c. assign tied ranks. d. throw out the tied data.
Compared to experts, novices generally rely more on the circumstances of the immediate context than on formal rules and procedures
Indicate whether this statement is true or false.
Which of the following most accurately describes the relationship between testosterone levels and competency on spatial relations tasks?
a. Competency on spatial relations tasks is positively correlated with testosterone levels for both men and women. b. Competency on spatial relations tasks is negatively correlated with testosterone levels for both men and women. c. Competency on spatial relations tasks is positively correlated with testosterone levels for men, but not for women. d. Competency on spatial relations tasks is positively correlated with testosterone levels for women, but not for men.
A developmental psychologist who studies the behavior patterns of other animals in order to explain human development is likely working from which perspective?
A) Dynamic systems B) Ecological C) Evolutionary D) Sociocultural