Examlex
What is the embryo-produced hormone that maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of pregnancy?
Operationalization
The process of defining research variables into measurable factors.
Independent Variable
In scientific studies, a variable that is intentionally altered to examine how it impacts a dependent variable.
Validity
The quality of being logically or factually sound; the degree to which a concept, conclusion, or measurement is well-founded and corresponds accurately to the real world.
Experimental Group
In scientific research, the group of subjects who are exposed to the variable or treatment being tested, as opposed to the control group.
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