Cara is plotting a zero correlation as a graph. Her cluster of points will form the shape of a(n)
a. diagonal oval to the right.
b. diagonal oval to the left.
c. inverted-U.
d. circle.
D
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Gina and David are both 12 years old. Given what we know about adolescent height and weight growth spurts, which would you expect to find?
a. David is taller than Gina. b. Gina is taller than David. c. David weighs more than Gina. d. They would be the same height and weight as neither have entered the adolescent growth spurt.
Which explanation has not been offered for the modest relationship between income and happiness?
a. People engage in both upward and downward social comparisons. b. Subjective well-being depends on self-efficacy. c. Satisfaction is based upon the level of success to which one is accustomed. d. Everyone has a different baseline level of happiness.
The ratio of boys to girls for ADHD is
A. about equal, or 1:1. B. approximately 2 boys to every 1 girl. C. approximately 3 boys to every 1 girl. D. more than 10 boys to every 1 girl.
According to the text, in the U.S. today, the period of middle adulthood spans the ages from:
a. 35 to 55 b. 40 to 60 or 65 c. 45 to 65 or 70 d. 50 to 65 or 70