04-Gather Useful Data complete


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Unformatted text preview: not assign any treatments or conditions. Participants are not asked to do anything differently. Experiments: The researchers manipulate something and measure the effect of the manipulation on some outcome of interest. Often participants are randomly assigned to the various conditions or treatments. Most studies, either observational or experimental, are interested in learning of the effect of one variable (called the explanatory variable) on another variable (called the response or outcome variable). A confounding variable is a variable that both affects the response variab...
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