DEPARTMENT OF SOCIOLOGY: SOCIAL RESEARCH METHODS
Revision Exercise
1. Write a brief account of the following, giving examples where appropriate:
(a) Probability Sampling; (b) Mean; (c) Second Property of the Mean; (d) Range;
(e) Variance.
2. The following variables are frequently encountered in social research. Identify the level of
measurement usually associated with each:
(a) Marital Status; (b) Ethnicity; (c) Number of Siblings; (d) Educational Attainment;
(e) Position in birth order of siblings.
3. A sample of students received the following scores on a statistics test:
55, 40, 35, 35, and 60
a) Using the above data by way of an example, demonstrate the statistical accuracy of both
the first and second property of the mean.
4. The following distributions represent the performance of two classes on an exam:
Class 1 Class 2
98 98
97 91
94 89
93 83
90 83
90 83
90 79
88 78
87 76
85 74
82 72
81 71
80 69
77 68
73 67
a) What are the modes for class 1 and class 2?
b) What are the medians for class 1 and class 2?
c) What are the means for class 1 and class 2?
d) What are the ranges for class 1 and class 2?
e) What are the variance and standard deviation for class 1?
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