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

Multiple Choice

A researcher has measured self-esteem for a sample of 40 first-grade children.The researcher would like 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 will 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