Xavier has dark curly hair and facial dimples. These characteristics are called ______ traits.
A. recessive
B. dominant
C. polygenic
D. codominant
Answer: B
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Suppose that you read a study in which 5,000 male workers and 5,000 female workers are asked about the number of days of work they missed last year. Imagine that males miss an average of 7.2 days and females miss an average of 7.3 days, and the difference is statistically significant. What would be an important criticism of this study?
a. Statistical significance is not important when we are considering such large sample sizes. b. The difference probably has no practical significance. c. The sample was probably not large enough. d. The study was probably very carefully conducted, because those two means are so similar.
The first stage of problem solving involves
a. setting overall goals. b. defining the problem. c. generating solutions. d. adopting the mindset.
Research seems to show that hopelessness and negative expectations about the future ____.
A) are unrelated to the likelihood of suicide B) are even more strongly related to suicidal behavior than depression is C) cause suicide but not depression D) cause depression but not suicide
Ritalin is to ____ as aspirin is to ____
a. stimulant; depressant b. attention-deficit hyperactivity disorder; headache c. depression; headache d. analgesic; amphetamine