Examlex
If Xavier gives up a job in which he earns $23,000 per year in order to go to college full time, his foregone income is part of the opportunity cost of going to college.
Positive Correlation
A relationship between two variables where an increase in one variable is associated with an increase in the other.
Negative Correlation
Negative Correlation refers to a relationship between two variables where one variable increases as the other decreases, and vice versa.
Null Relationship
indicates a situation where no association is found between two variables being studied.
Internal Reliability
When all of the items on a questionnaire measure the same thing.
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