A researcher computes a two-independent-sample t test. Which of the following describes a research situation in which this test is used to analyze the data?
A. A graduate student selects a sample of participants to test if the time spent on a task is greater than 30 min.
B. A researcher matches right- and left-handed siblings to test if left-handed siblings express greater emotional intelligence than their right-handed counterparts.
C. A professor tests whether students who repeat a course perform better the first or second time they complete the course.
D. A professor tests whether students who always sit in the front row of a class score higher on class exams than do students who always sit in the back row of a class.
Answer: D
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Grant (2008) asked skilled immigrants from Asia and Africa about their feelings when credentials earned in their country of origin were not recognized in Canada. Participants showed anger, frustration, and resentment. The authors explained this as due to
A) frustration-aggression. B) social exclusion. C) relative deprivation. D) aggressive stimuli. E) provocation.
You test an 11-year-old child and find she has a mental age of 10. What is her IQ?
a) 91 b) 100 c) 111 d) 122