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Extraneous Variables are undesirable variables that influence the relationship between the variables that an experimenter is examining. Another way to think of this, is that these are variables the influence the outcome of an experiment, though they are not the variables that are actually of interest.
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web.mst.edu/~psyworld/extraneous.htm
web.mst.edu/~psyworld/extraneous.htm
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These unwanted influences stem from one or more of the following: extraneous variables, bias, the Hawthorne effect, and the passage of time. These four will be discussed in turn, along with some suggestions for controlling their effects. You will need to ... Methods of controlling extraneous variables include:
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cbdd.wsu.edu/edev/NetTOM_ToT/Resources/Other/TOM614/pag...
cbdd.wsu.edu/edev/NetTOM_ToT/Resources/Other/TOM614/page54.htm
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Limited-Population Designs ... Before-After Designs ... Matched-Group Designs...
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www.umich.edu/~psycours/381/masuda/381notes/ch12/tsld00...
www.umich.edu/~psycours/381/masuda/381notes/ch12/tsld004.htm
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Techniques to Control Extraneous Variables ... I. Review – Extraneous Variables Threaten Internal Validity...
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jan.ucc.nau.edu/pe/hp602web/HP601L15.htm
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One goal of all scientific research is to strive for control of any extraneous variables. That is, they wish to isolate the effect to the variable of interest while trying to eliminate any possibility that some other confounding variable is affecting their results. Psychology, perhaps more that most other...
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jtm3.myweb.uga.edu/extraneous%20variables.htm
jtm3.myweb.uga.edu/extraneous%20variables.htm
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In practice, extraneous variables are not merely ``possible causes''; ... By promoting age to be an extraneous or independent variable--by controlling for age directly instead of letting random sampling control for its effect--we can reduce variance and see effects due to gender. The bottom two distributions represent boys...
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www.cs.colostate.edu/~howe/EMAI/ch3/node4.html
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- Outline Abstract NAVIGATING ORGANIZATIONAL RESTRUCTURING MANAGING WITHIN A CLIMATE OF UNCERTAINTY CREATING RECIPROCITY IN CLINICAL RESEARCH CONTROLLING EXTRANEOUS VARIABLES WORKING W ... Clinical Nurse Specialist: The Journal for Advanced Nursing Practice; ... NAVIGATING ORGANIZATIONAL RESTRUCTURING ;
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cms.nursingcenter.com/dev/library/JournalArticle.asp?Ar...
cms.nursingcenter.com/dev/library/JournalArticle.asp?Article_ID=436010
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The business value of electronic data interchange (EDI) is explored. For the study, the dollar benefits of EDI-enhanced exchange of information between Chrysler Corp. and its suppliers are estimated. ... After controlling for extraneous variables, it is discovered that savings per vehicle are approximately $60.
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www.allbusiness.com/technology/computer-networks-electr...
www.allbusiness.com/technology/computer-networks-electronic-data-interchange/7753699-1.html
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The Experimental Method ... That is why the extraneous variables must be controlled. If we do a good job of controlling the extraneous variables in our experiment, the only difference between what the experimental group and the control group experience in our experiment is the independent variable.
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www.tulsa.oklahoma.net/~jnichols/Experiment.html
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