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Is the interaction between race/ethnicity and income significant?
Now we can proceed with the ANCOVA analysis described in Exercise B1. Open the GLM Univariate dialog box again, which should already have the…
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If overall group differences were significant, which groups were significantly different from other groups, and what was the nature of the differences?
For this exercise, you will use MANOVA to test the hypothesis that there are racial/ethnic differences in scores on the SF-12, using scores from…
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use MANOVA to test the hypothesis that there are racial/ethnic differences in scores on the SF-12, using scores from both the physical health component (sf12phys) and mental health component (sf12ment) as the dependent variables and racethn as the independent variable.
Re-run the analysis in exercise B3 as a MANCOVA by selecting a covariate from the data set. Was the covariate a significant predictor of…
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What does the profile plot tell us about changes over time?
In this exercise, we will test racial/ethnic differences in depression over time, using CES-D scores from the two waves of interviews with a subsample…
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What is the odds ratio in this analysis?
For these exercises, you will be using the SPSS dataset Polit2SetB. The analyses will focus on predicting the probability that a woman is in…
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use the Logistic regression program in SPSS rather than Crosstabs to look at the bivariate relationship between health and smoker.
In this exercise, use the Logistic regression program in SPSS rather than Crosstabs to look at the bivariate relationship between health and smoker. In…
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Interpret the meaning of the OR for age in this analysis.
In this next exercise, we will use five predictors to predict the probability of good health (health) in a standard logistic regression: The predictors…
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Interpret the meaning of the OR for age in this analysis.
In this next exercise, we will again use five independent variables to predict the probability of good health (health), but instead of using bmi…
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What was the range of missing data for individual items?
1. Comment on the researchers’ decisions in the research example at the end of this chapter (Cˇrncˇ ec et al., 2008). What, if anything,…
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Would the value of Cronbach’s alpha increase if any items were deleted—and, if so, which items and by how much?
Before performing a factor analysis, do a reliability analysis for the entire 20-item scale. Click Analyze ➜ Scale ➜ Reliability Analysis. Move the 16…