In hypothesis with two different groups, ______.
A. it is always going to be a two-tailed test
B. it is always going to be a one-tailed test
C. it could be a one-tailed or two-tailed test
D. you can only state null hypothesis
Answer: C
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Professor Wyler has obtained a grant from the National Institute of Mental Health to study the effects of violence in film on attitudes towards aggression among teenagers. He would like to study the effects in a range of socio-economic settings, from impoverished to very wealthy communities. Should he obtain approval from his institutional review board? Why or why not? Discuss potential ethical
issues that he should consider related to research in an impoverished community. What will be an ideal response?
Which action best exemplifies an impulsive child?
a. Not concentrating on his homework b. Shouting out an answer when he is supposed to raise his hand before answering c. Fidgeting in his chair while eating d. The inability to read a simple book despite significant intervention
Regardless of the emotions associated with a divorce, what consistently happens to children afterwards?
a. downward movement in socioeconomic status b. serious psychological disturbance c. enhanced psychological functioning because the marital conflict is now resolved d. none of these
Who is most affected by air pollution?
A. children from developed countries B. children from wealthy countries C. children from the poorest countries D. children from urban countries