An extraneous variable is also referred to as a confounding variable because it can have a(n) ________ influence on the experiment. Group of answer choices unintended intended clarifying elucidating
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In lecture on predator control, several steps and factors in scientific research were presented as increasing or decreasing the strength of inference about observations, measurements, or experiments. From the list below, select the best definition for the following term: Confounding variables Group of answer choices = slant towards a particular outcome that makes results inaccurate or imprecise. = nuisance or uninteresting variables mimic a treatment effect or its absence (e.g., time in the silver standard) = reverse condition between treatment or placebo control condition, midway and compare subjects to themselves before and after reversal = number of independent subjects = number of independent subjects
Asma V.
What is a confounding variable?
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Experimental Design
You may use a graphing calculator when answering Exercises. Randomness is important in experimental design in order to equalize (among the treatment groups) (A) Unforeseen variation. (B) Extraneous blocking. (C) Unnecessary placebos. (D) Noncausal correlation. (E) Expected behavior.
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