A colleague informs you that the data you collected in an Internet-based experiment may not
be internally valid. Which strategy would most likely alter this opinion?
A) If you could demonstrate that the study participants were demographically similar to
people in the community.
B) If you could demonstrate the same findings in a smaller, laboratory-based study.
C) If you could demonstrate that most people took the same amount of time completing the
task over the Internet.
D) If you told your colleague that you offered heavy financial compensation for study
participation.
B
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Research on gender differences in emotions has found that ____
a. women tend to experience more positive emotions than men b. women tend to experience emotions more strongly than men c. women tend to experience emotions more frequently than men d. there are almost no gender differences in terms of strength, frequency, or valence of emotional experiences
To study the effectiveness of a new anti-anxiety drug, researchers randomly assign equally anxious people to two groups, one getting Drug X and the other getting no drug. The researchers mistakenly conclude that Drug X works because people in the drug group show fewer signs of anxiety than the others. What is the mistake?
a. They never introduced an independent variable. b. They did not create a placebo control group. c. They never did a pretest of anxiety symptoms. d. They did not operationally define what the experimental group was.
The sign of the ______ value indicates the direction of the relationship, where +1.0 is the strongest possible positive relationship and -1.0 is the strongest possible negative relationship.
A. Tukey ad hoc B. Kendall's TAU-B C. Somer's d D. Pearson r
The leading cause of death from disease in 1- to 4-year-old children in the United States is cancer
Indicate whether this statement is true or false.