A one-tailed test is used:
A. when you want to minimize the possibility of making a Type II error.
B. if you are interested only in whether the obtained value of the statistic falls in one tail of the sampling distribution for that statistic.
C. in any situation where finding statistical significance is important.
D. if you are interested in bidirectional differences between means (for example, the experimental group mean is either higher or lower than the control group mean).
Answer: B
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A. about 25% B. nearly 35% C. just over 50% D. almost 75%
From an organizational perspective, what is the most effective intervention against harassment and discrimination?
What will be an ideal response?
Fernandez owns a business that employs several hundred people. He would like to increase both the satisfaction and the productivity of his employees. According to research, the least effective way for Fernandez to accomplish this would be to
A. encourage employees to participate in decisions about how their work should be done. B. give employees problems to solve without being told how to solve them. C. recognize employees publicly for good performance. D. increase employees' pay and benefits.
In research on ethnically diverse lesbian, gay, and bisexual youths, awareness of a same-sex physical attraction occurred, on average, between ages
A) 8 and 10 for boys. B) 11 and 12 for girls. C) 14 and 15 for girls. D) 14 and 15 for boys.