Examlex
_____ occurs when a sample somehow does not represent the target population.
Educational Researcher
A professional who studies and analyses processes related to education and learning methodologies, aiming to improve educational systems and outcomes.
Positive Correlation
A relationship between two variables where an increase in one variable is associated with an increase in the other.
Independent Variable
In research, a variable that is manipulated or changed to observe its effects on a dependent variable.
Experimental Method
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
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