Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to many different colleges and universities.*
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* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 33 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.
Occurs when the effects of the treatments, if any, are indistinguishable from the potential effects of some other variable which was unaccounted for.
Confounding Variable
A variable which was not accounted for in a study, which limits the conclusions that the study can draw.
Explanatory Variable
A variable that we believe is predictive of something else. An increase in this variable will correspond to an increase or decrease in some other variable.
Response Variable
A variable that is affected by the explanatory variable.
Variable
Any attribute or number that can be measured about individuals in a study.
Variable of Interest
Any variable which we need to know about in the context of a study.
