Which reduces the negative consequences of stress?
(a) a high level of adrenaline
(b) a tendency to make internal attributions
(c) a prolonged alarm reaction
(d) a social support network
D
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A researcher selects a sample of 100 people to investigate the relationship between gender (male/female) and registering to vote. The sample consists of 40 females, of whom 30 are registered voters, and 60 males, of whom 40 are registered voters. If these data were used for a chi-square test for independence, what is the observed frequency for registered males?
a. 12 c. 40 b. 28 d. 42
Which of the following is an obstacle sperm face in attempting to reach the ovum?
A. Only a few viable sperm are ejaculated. B. Vaginal acidity kills many sperm. C. Most sperm travel randomly and do not go in the right direction. D. The cilia are designed to keep out foreign objects.
Chris wants to calculate the interscorer reliability for an essay test that had two scorers. Which one of the following would be most appropriate for Chris to use?
A. Cohen's kappa B. coefficient alpha C. KR-20 D. Correlation
Which is NOT a step in the decision to help, according to the decision-making perspective?
a. perceiving a need b. modeling the behavior of others c. weighing the costs and benefits d. taking personal responsibility for helping