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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…
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Essay on a Shakespear poem
In the 1928 segments of Searss Harlem Duet, He is an actor performing the role of Othello. How does this reference to Shakespeares play…
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Project 2: close reading Essay #2
Often when we read, the authors words make us see the world around us in new ways. Both poetry and song are similar genres…
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Criminal Justice: Theory in Practice
1) What factors may influence both true/false positives and false negatives? (e.g., social, psychological, and biological backgrounds, education, etc. (Chapter 4) 2) Given the…
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How many factors were extracted in this PCA? What percentage of variance do these factors account for?
In this exercise, you will undertake a principal components analysis of the CES-D items, using all 20 original items (no reversed items). Go to…
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undertake a factor analysis of the CES-D items using principal axis factoring, two factors, and oblique rotation.
Now you will undertake a factor analysis of the CES-D items using principal axis factoring, two factors, and oblique rotation. Proceed with the same…
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run a reliability analysis for each of the two factors from the previous exercise.
In this exercise, run a reliability analysis for each of the two factors from the previous exercise. In the first reliability analysis, use all…
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) What was the range of missing data for individual items, in terms of numbers and percentages?
For these exercises, you will be using the SPSS dataset Polit2SetC. We will begin by looking at individual responses to items on the Center…
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If we then computed CES-D scales scores, for what percent of the cases would we not be able to compute a CES-D score?
Now we will look at how many missing values individual participants had for these 20 CES-D items. To do this, we need to create…