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en.wikipedia.org/wiki/Controlling_for_a_variable

In statistics, controlling for a variable is the attempt to reduce the effect of confounding variables ... By holding extraneous variables constant, the researcher can come closer to understanding the true effect of the independent variable on the ...

web.mst.edu/~psyworld/extraneous.htm

Extraneous and Confounding Variables and Systematic vs Non-Systematic Error. Extraneous Variables are undesirable variables that influence the relationship ...

www.statisticshowto.com/extraneous-variable

May 10, 2015 ... Extraneous variable are any variables that you are not intentionally studying in your experiment or test. Definition and examples for extraneous ...

www.cs.colostate.edu/~howe/EMAI/ch3/node4.html

In practice, extraneous variables are not merely ``possible causes''; they are `` plausible causes.'' It is plausible to believe that a teacher's view of a student ...

definitions.uslegal.com/e/extraneous-factor

Extraneous factor refers to something not of primary interest that is beyond or unrelated to the factor in issue. Extraneous factors may also be called nuisance ...

www.explorepsychology.com/what-is-an-extraneous-variable

Sep 6, 2016 ... Extraneous variables include anything other than the independent and dependent variables that might influence a psychology experiment.

www.answers.com/Q/What_is_an_extraneous_factor

Answer An extraneous factor is one that is not pertinent or relevant to what is being studied, for instance, in a research experiment.

dissertation.laerd.com/extraneous-and-confounding-variables.php

Any variable that you are not intentionally studying in your dissertation is an extraneous variable that could threaten the internal validity of your results [see the ...

study.com/academy/lesson/extraneous-confounding-variables-differences-examples.html

What happens when something other than your independent variable is influencing the outcome of your study? In this lesson, we'll look at two types...