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?
A)the mean
B)the median
C)the mode
D)the standard deviation

Question

Quizplus · Accepted Answer

The median would be the best choice as it would divide the sample into two equal-sized groups, with half of the children having scores above the median and half having scores below the median. The mean and mode may not necessarily divide the sample into equal groups. The standard deviation is a measure of variability rather than a measure of central tendency and would not be useful for dividing the sample into two groups.

A Researcher Has Measured Self-Esteem for a Sample of 40