17A. Which situation illustrates the use of an ordinal scale of measurement?

1. 1.Consumers rate the pleasant taste of foods on a scale of 1 to 9.
2. 2.Employees of a company are classified as management or line workers.
3. 3.Management of a company counts the number of employees in each division of a company.
4. 4.Companies are ranked according to their amount of sales.

B. Which of the following is the definition of variance?

1. 1.the average squared distance from the mean
2. 2.the sum of the scores divided by the number of scores
3. 3.the average distance from the mean
4. 4.the square root of the average distance from the mean

C. A researcher has measured self-esteem for a sample of 40 first-grade children. If the researcher wanted to divide the children into two equal-sized groups consisting of the high self-esteem kids and the low self-esteem kids, which statistical measure would identify the correct score to serve as the boundary between the high and the low self-esteem groups?

1. 1.the median
2. 2.the mean
3. 3.the mode
4. 4.the standard deviation

D. The middle score in a distribution is the

1. 1.standard score
2. 2.mode.
3. 3.median.
4. 4.mean.