The next questions are based on the following empirical article:
Chandra, A., Martino, S. C., Collins, R. L., Elliott , M. N., Berry, S. H., Kanouse, D. E., & Miu, A. (2008).
Does watching sex on television predict teen pregnancy? Findings from a National Longitudinal
Survey of Youth.
Pediatrics, 122
, 1047–1054.
This study used a large, random sample of youth from the National Longitudinal Survey of Youth. At
Time 1, they measured how much sex teenagers saw on television by indicating how frequently they
watched 23 programs on TV that had been evaluated for sexual content. Teens in the study also
reported a number of demographic, TV viewing, and other variables. At Time 2, teens also indicated
whether they had become pregnant (females) or had made another person pregnant (males). Below is a table showing the results of their multiple regression analyses.
1. What is the criterion (dependent) variable in this study?
2. According to the table above, how many predictor variables are in this study?
3. Write a sentence that describes what the beta for the “exposure to sex on television” variable means. (Hint: use the sentences in Table 9.2 of your textbook as a model).
4. Write a sentence that describes what the beta for the “lower grades” variable means. (Hint: make sure to check the p value).
5. What is an additional third variable that you might want to control for if you were interested in the relationship between sex on TV and teen pregnancy?
6. Can the researchers make the causal claim that watching sex on TV increases teen pregnancy rates? Why or why not?
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Posted 18 May 2017 04:05 AM
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