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________Blank occurs when the effects of an independent variable and an uncontrolled variable are intertwined, so that one cannot determine which of the variables is
________Blank occurs when the effects of an independent variable and an uncontrolled variable are intertwined, so that one cannot determine which of the variables is responsible for a particular observed effect on a dependent variable. Multiple Choice Confounding Fatigue effect Attrition Counterbalancing
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Calculus
Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon
9th edition
131429248, 978-0131429246
