20. For variables measured at the nominal level, an appropriate measure of dispe
ID: 3128888 • Letter: 2
Question
20. For variables measured at the nominal level, an appropriate measure of dispersion is
A, the range.
the average deviation.
the index of qualitative variation.
the mode.
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21.
Which of the following quantities is required to compute the IQV?
The sum of the scores
The sum of the squared scores
The sum of the differentials
The sum of the squared frequencies
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22.
Measures of dispersion provide information about the
typical or most common score.
variety within the distribution of scores.
size of the sample.
adequacy of the selection criteria for the sample.
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23.
The index of qualitative variation (IQV) is the ratio of the actual variation in the scores to
one.
the maximum variation possible.
the minimum variation possible.
the number of scores.
A, the range.
B.the average deviation.
C.the index of qualitative variation.
D.the mode.
Explanation / Answer
20. For variables measured at the nominal level, an appropriate measure of dispersion is
Option C is true.
21.
The sum of the squared frequencies
22.
Measures of dispersion provide information about the
variety within the distribution of scores.
23.
The index of qualitative variation (IQV) is the ratio of the actual variation in the scores to
the maximum variation possible.
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