Analytical Methods

Analytical Methods. Analytical Methods. Module 5 Assignment

Chapter 10

Note: the following two questions use the same set of data as Problem 3 in Module 1 Assignment.

1. (Hypothetical data) Is a person’s race related to victimization? Suppose you have surveyed 30 people. You ask them:

• Would you describe yourself as White (w) or Non-White (n)?
• Would you describe yourself as Middle (m) or Working (w) Class?
• Have you been a victim of a crime in the past year? (Yes = 1 or No = 0)

 

Case	Race	Class	Victim	N_times_vic
1	w	w	1	1
2	w	m	0	0
3	n	w	1	1
4	n	w	1	1
5	n	w	1	2
6	w	w	0	0
7	w	m	0	0
8	w	m	0	0
9	w	w	1	1
10	n	w	1	1
11	n	w	1	2
12	w	m	0	0
13	n	w	0	0
14	w	w	0	0
15	n	w	1	1
16	w	m	0	0
17	w	w	1	2
18	w	w	1	1
19	w	w	1	1
20	n	m	0	0
21	n	m	1	2
22	w	w	1	1
23	w	w	0	0
24	n	w	1	1
25	w	m	0	0
26	w	w	1	1
27	n	m	0	0
28	n	w	0	0
29	n	w	0	0
30	w	m	1	1

 

1. Construct a bivariate table of frequencies for race and victimization. Which is the independent variable?
2. Calculate percentages for the table based on the independent variable. Describe the relationship between race and victimization using the table.
3. Use the data to construct a bivariate table to compare victimization experience of those who are middle class and those who are working class. Use percentages to show whether there is a difference between middle class and working class experience.

In the problem above, you examined racial and social class differences in victimization. You now wonder if the racial difference you found might be related to social class.

1. Construct Tables showing the relationship between victimization, race and social class.
2. Interpret the results.

Chapter 11

2. Imagine that we have conducted a much larger research project using the variables in the first question (race, class and victimization)

Table 1	Race
Victimization	White	Non-white	Total
Yes	94	242	336
No	343	295	638
Total	437	537	974

1. What is the number of degrees of freedom for Table 1?
2. Test the null hypothesis that race and victimization are independent (alpha = .05). What do you conclude?

Imagine a separate study, using the same set of variables.

Table 2	Middle Class
	Race
Victimization	White	Non-white	Total
Yes	59	160	219
No	253	224	477
Total	312	384	696

Table 3	Working Class
	Race
Victimization	White	Non-white	Total
Yes	7	52	59
No	41	38	79
Total	48	90	138

 

 

 

 

 

1. Which class group has the higher percentage or respondents indicating that they have been a victim of crime in the past year?
2. For each class, test they hypothesis that race and reported victimization are independent (alpha = .01).

 

 

Learning Check

Explain what is meant by a positive relationship between two variables and a negative relationship between two variables. Give an example of a situation in criminology or criminal justice other than those given in the text or lecture in which we would expect to find a positive relationship and one in which we would expect to find a negative relationship. Can one assign direction when both variables in a table are dichotomous?

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Analytical Methods

Analytical Methods

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