Examlex
Why was the development of cities important to the development of astronomy?
Main Effect
The direct influence of an independent variable on a dependent variable in an experiment, disregarding the effects of other variables.
Independent Variable
A variable that is manipulated by the researcher to observe its effect on the dependent variable in an experiment.
Factorial Designs
Experimental designs used to explore the effects of two or more variables at the same time, allowing for the analysis of interactions among variables.
Confounding Variables
Factors other than the independent variable that may cause a result, making it difficult to establish a clear causal relationship.
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