Which of the following statements about part-time work during high school is true?
A) About 10 percent of U.S. high school students work part-time during the school year.
B) The more hours students work, the more likely they are to drop out of school.
C) Heavy commitment to part-time work is not harmful as long as the job involves low-level repetitive tasks.
D) Students who work 20 or more hours a week tend to be highly committed to their studies.
B
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Juanita is a supertaster with a large number of papillae. Marissa is a normal taster with less papillae. Which statement is most likely to be true?
a) Juanita is more likely than Marissa to be slimmer and have a better cholesterol profile. b) Marissa is more likely than Juanita to be slimmer and have a better cholesterol profile. c) Juanita is more likely than Marissa to like strong-flavored foods and beverages. d) Differences in the number of papillae don't affect things like weight, cholesterol, or flavor preferences.
Dr. Falcone is working on a study where she is interested in measuring age differences in problem-solving behavior across the lifespan
To conduct this study, she brings into her laboratory a group of 5-year-old, 10-year-old, 20-year-old, and 50-year-old subjects at one time, and measures the subjects' ability to solve a number of word problems. It appears as though Dr. Falcone is carrying out a a. longitudinal design. b. cross-sectional design. c. a "true" laboratory experiment with a high degree of internal validity. d. naturalistic observational design.