Examlex
The population pyramid is a graph depicting the proportion of males and females in the United States population at any given point in time.Explain why the graph was actually shaped like a pyramid in 1900,but by the year 2030 it will not resemble a pyramid at all.
GPAs
Stands for Grade Point Averages, a numerical indication of a student's academic performance calculated by averaging the grades from all of their courses.
Moderator Variables
Variables that explain when, where, or for whom an effect is most likely to occur.
Random Assignment
A method in experimental design where participants are allocated to different groups on a random basis to reduce bias and increase the validity of the results.
Construct Validity
The extent to which a test or instrument measures the theoretical construct it's intended to measure.
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