Need SPSS output and data file for Statistics exercise
solmon3
spss_exercise_7.docxPrediction - Bivariate Linear Regression
Part One:
1. A community psychologist is interested in whether spending time in after-school programs is predictive of the number of arrests as a young adult in a high-risk neighborhood. After collecting records on 17 individuals over 8 years, the psychologist compiles the information listed in the table below. Conduct a linear regression to analyze the research question.
|
Hours Spent in After-School Programs |
Number of Arrests After Age 17 |
|
3 |
2 |
|
41 |
1 |
|
68 |
1 |
|
29 |
0 |
|
7 |
5 |
|
12 |
4 |
|
121 |
0 |
|
54 |
1 |
|
19 |
3 |
|
134 |
0 |
|
106 |
1 |
|
67 |
1 |
|
25 |
3 |
|
73 |
1 |
|
38 |
4 |
|
110 |
0 |
|
31 |
3 |
2. Construct a scatterplot of the relationship between the two variables. Plot the regression line on this graph.
3. Is time spent in after school programs predictive of the number of arrests as a young adult? Write an APA-style results section describing the outcome. The statistical statement for a bivariate linear regression should include at least the equation of the line and the confidence interval for the slope (the second row under Confidence Intervals in the output).
Part Two: Cumulative Homework
1. To investigate the relationship between hours spent studying and exam scores, researchers measured the following. Is there a significant relationship between hours spent studying and scores? Choose the correct test to analyze this question, set up the SPSS file, and run the analysis. Follow the directions under the table below.
|
Hours spent studying |
Exam Scores |
|
1 3 3 4 4 5 5 5 6 6 7 7 8 |
40 50 51 61 73 71 64 75 68 76 94 85 84 |
a) Paste appropriate SPSS output.
b) Paste appropriate SPSS graph.
c) Write an APA-style results section describing the outcome.
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