Examlex
Discuss three of the many changes that took place in America between 1840 and 1860 (the antebellum years).
Confounding Variables
Factors other than the independent variable that may cause a result, making it difficult to establish a clear causal relationship.
Independent Variable
A variable that is manipulated or changed by the researcher to observe its effect on the dependent variable.
Curvilinear Relationship
A type of relationship between two variables where the change in the outcome variable does not happen in a straight-line manner with changes in the predictor variable.
Factorial Designs
Experimental setups that allow researchers to examine the effects of two or more independent variables on a dependent variable simultaneously.
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