Which statement about cell phones and the Internet is true?
A) Boys text their friends more often than girls.
B) Girls are more avid gamers with friends than boys.
C) Girls call their friends more often than boys.
D) Boys more often use social media sites to share information.
Answer: C
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When a young woman interviewed men on either a high, shaky bridge or a low, sturdy bridge, men who were interviewed on the shaky bridge found the woman more exciting. Why are the results difficult to interpret?
a. The woman may have behaved differently on the two bridges. b. Men and women probably react differently to autonomic arousal. c. The same woman conducted the interviews on both bridges. d. The researchers tested only a small sample of participants.
Learning to ride a bicycle is most likely acquired via the process of
a. classical conditioning. b. shaping. c. spontaneous recovery. d. innate stimulus release.
Research on suicide notes shows that when people leave notes, the notes tend to ____
a. focus on mundane, concrete topics b. dwell on the person's (usually unhappy) childhood experiences c. list or discuss the person's accomplishments—possibly as a "last ditch" effort for the person to show his or her worth d. draw comparisons between the person and famous martyrs or celebrities who have committed suicide
With a one-sample t test, the value of t is
a. always positive. b. positive if the sample mean is too small. c. negative whenever the sample standard deviation is negative. d. positive if the sample mean is larger than the hypothesized population mean.