Approximately what percent of American high school seniors report using inhalants to get high?
A) 1 B) 4 C) 9 D) 13
Answer: B
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A normal distribution has a mean of ยต = 100 with ? = 20 . If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 80 and X = 100?
a. 0.8413 c. 0.3413 b. 0.1587 d. 0.6826
A curvilinear relationship is one in which
a. one variable always increases as the other increases. b. as X increases, Y will increase and then level off or fall. c. as X increases, Y will decrease and then level off or rise. d. both b and c
A brief slogan of psychometrics would be,
a. "Explain!" b. "Equalize!" c. "Measure!" d. "Interfere!"
Your one-year old sister picks up objects feels every part of them, and then puts them in her mouth. What stage of Jean Piaget's model of cognitive development does this behavior suggest she is in?
a) concrete operations b) sensorimotor c) preoperational d) formal operations