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## Confounding variable - Wikipedia

en.wikipedia.org/wiki/Confounding

In statistics, a confounding variable is an extraneous variable in a statistical model that .... Returning to the drug use example, since Z complies with the Back- Door requirement (i.e., it intercep...

## Extraneous Variables

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

Extraneous Variables are undesirable variables that influence the relationship ... For example, let's say that an educational psychologist has developed a new ...

## Extraneous & Confounding Variables: Differences & Examples ...

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...

## What is an Extraneous Variable? - Colorado State University

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

Jul 15, 1996 ... Agreed, this example seems a bit ridiculous, but you can't prove that these ... So if you take the definition of ``extraneous variable'' literally (i.e., ...

## Extraneous and confounding variables - Research Observatory ...

ro.uwe.ac.uk/context6/area1/room3/constellation54/learningobject319

Extraneous and confounding variables are variables other than the independent variable which may have an effect on the dependent variable. They are ...

## Extraneous variables and internal and external validity

people.uncw.edu/kozloffm/Extraneous Variables and Internal and External Validity.doc

Extraneous variables are variables that aren't a planned part of research; e.g., research .... For example, if you use an experimental and control group, and if you ...

## What are extraneous variables in a research survey? | Reference.com

www.reference.com/world-view/extraneous-variables-research-survey-f5f4de93e39c437b

In a scientific experiment, extraneous variables are those conditions other ... A: An example of causal research would be a restaurant wanting to find out why ...

## What is an extraneous variable? - PsychWiki - A Collaborative ...

www.psychwiki.com/wiki/What_is_an_extraneous_variable?

Nov 13, 2010 ... Extraneous variables can be defined as any variables that may affect the ... However, if for example, a participant heard a noise every time the ...

Aug 27, 2013 ... This episode explains extraneous variables in an experiment, and how certain variables can prove to be confounding to an experiment. written ...

## Chapter 9. Using Experimental Control to Reduce Extraneous ...

uca.edu/psychology/files/2013/08/Ch9-Using-Experimental-Control-to-Reduce-Extraneous-Variability.pdf

In the previous chapter, we saw how extraneous variables can contribute to ... characteristics (for example, anxious versus nonanxious, heavy versus thin, ...

### Extraneous and confounding variables | Lærd Dissertation

dissertation.laerd.com

In this article, we (a) explain what extraneous variables are, providing some examples, (b) highlight when extraneous variables become confounding variables, ...

### Extraneous Variable Simple Definition - Statistics How To

www.statisticshowto.com

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

### Dependent Variable - Independent Variable | Simply Psychology

www.simplypsychology.org

In this particular example the type of information is the independent variable ( because it changes) ... Extraneous variables should be controlled were possible.