The most commonly used measure of central tendency is the

In a classroom for gifted students, we would expect the distribution of IQ scores to be

A) Rectilinear. B) Identical. C) Skewed. D) Symmetric.

Which time in U.S. history shows an exception to political polarization?

a. The duration of the Great Depression b. The period just prior to World War I c. The years throughout the Vietnam War d. The era immediately following World War II