school of criminology and criminal justice crj 511 applied data analys
Search for question
Question
School of Criminology and Criminal Justice
CRJ 511 Applied Data Analysis in Criminal Justice
Application Assignment #4
For this assignment you will be using two articles. You are going to use Gray (2010)
Actions
for Part 1 and Dearing et al. (2005)
Actions
for Part 2. Again, as a reminder. Use the Gray (2010) article for questions 1-3 that are all related
to chi-square testing. Use the Dearing et al. (2005) article for questions 4-9 that are related to
correlations. If you have trouble accessing these links, let me know. I can email them to you
directly!
Unfortunately, these articles contain numerous chi-square test and correlation tables which could
cause some confusion. To help, please keep the following in mind.
Gray (2010)- I want you to answer the questions using Table III which is located on page 547.
Here is a screenshot Download screenshotof the table. Please do not use any other chi-square
tables to answer questions 1-3.
Dearing et al. (2005)- I want you to answer the questions using Table 3 which is located on page
1399. Here is a screenshot Download screenshotof the table. Please do not use any other
correlation tables to answer the questions. If you notice in the screenshot, I put a big red X
through part of the table. This is because I only want you interpreting the bivariate
correlations. Do not discuss/interpret part correlations in your responses.
As a bonus, here is a helpful hint:
Be sure you are reading the footnote carefully. * is significant at p<.05; ** is significant at
p<.01; and *** is significant at p<0.001. Logically, if something is significant at the .01 level
then it is also significant at the .05 level. Therefore, make sure you are interpreting all significant
correlations, not just those that only significant at .05.
Article 1:
The selected article should contain Chi-square test(s) in a table or in text. If this article contains
more than one Chi-square test, pick one and then answer the following questions.
1.
What relationship is being tested in this Chi-square test? [2pts] Why is Chi-square test
appropriate? [2pts]
2. How would you define this Chi-square test (e.g., 2x2, 2x3, etc.)? [1pt] 3. Interpret the result of this Chi-square test. In other words, did the authors find significant
relationships between variables? Which relationships are significant, if any? What do
these significant relationships tell you? [5pts]
Article 2:
4. Answer the following questions about the correlations based on the table that the authors
present bivariate correlations:
a. Which is the strongest correlation in the entire table? Be sure to include the value of
the correlation and describe the correlation (which variables are correlated). [2pts]
5. Which is the weakest correlation in the entire table? Be sure to include the value of the
correlation and describe the correlation (which variables are correlated). [2pts]
6. Which variable(s) are consistently positively correlated with the criminological term you
are interested in (e.g., crime, delinquency, sentencing length, etc.)? Interpret one positive
relationship in sentence form (in the form of, as X increases, what happens to Y). [2pts]
7. Which variable(s) are consistently negatively correlated with the criminological term you
are interested in (e.g., crime, delinquency, sentencing length, etc.)? Interpret one negative
relationship in sentence form (in the form of, as X increases, what happens to Y). [2pts]
8. When researchers wish to report significant findings within a table, they often use
asterisks. At the bottom of the table that presents bivariate correlations, you can see the
note: *
p < .05 for example. This note means that the authors performed a significant test
on the correlations to determine if they had significant findings. They are telling us that
all of the correlations with asterisks next to them were significant at the .05 alpha level.
Using this information, answer the following questions about the correlations presented
in the tables. a. Are there any correlations that are statistically significant? Be sure to include the
value of the correlations and describe the correlation (which variables are correlated).
[3pts]
b. In this table, which variable(s) consistently demonstrate significant correlations with
the criminological term you are interested in (e.g., crime, delinquency, sentencing
length, etc.)? What do these significant correlations tell you? [4pts]