Match each word or phrase with its definition. Word/Phrase (a) Designed Experiment (b) Observational Study (c) Lurking
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Match each word or phrase with its definition.
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Word/Phrase (a) Designed Experiment (b) Observational Study (c) Lurking Variable Definition I. Occurs when the effects of two or more explanatory variables are not separated. Therefore, any relation that may exist between an explanatory variable and the response variable may be due to some other variable not accounted for in the study. (e) Confounding Variable II. An explanatory variable that was considered in a study whose effect cannot be distinguished from a second explanatory variable in the study. III. A researcher randomly assigns the individuals in a study to groups, intentionally manipulates the value of an explanatory variable, controls other explanatory variables at fixed values, and then records the value of the response variable for each individual. (d) Confounding IV. An explanatory variable that was not considered in a study, but that affects the value of the response variable in the study. In addition, this variable is typically related to other explanatory variables in the study. V.A researcher measures the value of the response variable without attempting to influence the value of either the response or explanatory variables. That is, the researcher observes the behavior of individuals in the study and records the values of the explanatory and response variables.
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