Which of the following statements is true of the correlation coefficient?
A. It is a measure of central tendency.
B. It is a statistic that indicates the amount of spread in a distribution of scores.
C. It is a measure of variability.
D. It is a statistic that describes how strongly variables are related to one another.
Answer: D
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__________ is an herb that has been used extensively in Europe for mild to moderate depression
a. Clozaril b. Prozac c. Thorazine d. St. John's wort
Betsy, age 17, runs away from home and joins the circus. According to Erikson, she is most likely suffering from which conflict?
a. generativity vs. stagnation c. intimacy vs. isolation b. integrity vs. despair d. identity vs. role confusion
Which of the following has the greatest influence on adolescent risk-taking behavior?
a. parenting styles c. genetics b. peers d. personality
Although Tamika just ate a huge meal and feels "stuffed," the idea of a chocolate sundae is too good to pass up. Which motivational term explains the appeal of the sundae?
A. incentive B. instinctive C. drive reduction D. cognitive dissonance