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About: Variables

Module by: David Lane. E-mail the author

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Name: Variables
ID: m10802
Language: English (en)
Summary: This module gives definitions and examples of the different types of variables used in psychology experiments.
Subject: Mathematics and Statistics
Keywords: continous, dependent, discrete, independent, qualitative, quantitative, variable
Document Type: -//CNX//DTD CNXML 0.5 plus MathML//EN
License: Creative Commons Attribution License CC-BY 1.0

Authors: David Lane (
Copyright Holders: David Lane (
Maintainers: David Lane (, Eileen Meyer (

Latest version: 2.5 (history)
First publication date: Aug 9, 2002 12:00 am -0500
Last revision to module: Jul 21, 2003 12:03 pm -0500


PDF: m10802_2.5.pdf PDF file, for viewing content offline and printing. Learn more.
XML: m10802_2.5.cnxml XML that defines the structure and contents of the module, minus any included media files. Can be reimported in the editing interface. Learn more.

Version History

Version: 2.5 Jul 21, 2003 12:03 pm -0500 by Liqun Wang
fix the links.

Version: 2.4 Jun 20, 2003 12:00 am -0500 by Liqun Wang
change version from 0.4 to 0.5

Version: 2.3 Mar 14, 2003 12:00 am -0600 by Charlet Reedstrom
fixed typos, placed variable in math tags, fixed links

Version: 2.2 Nov 11, 2002 12:00 am -0600 by (Unknown)
added maintainer

Version: 2.1 Aug 13, 2002 12:00 am -0500 by (Unknown)
completion of module.  Metadata, abstract and keywords added.  Print checked

Version: 2.0 Aug 9, 2002 12:00 am -0500 by (Unknown)
Added initial template for new module m10802

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American Chemical Society (ACS) Style Guide:

Lane, D. Variables, OpenStax-CNX Web site., Jul 21, 2003.

American Medical Assocation (AMA) Manual of Style:

Lane D. Variables [OpenStax-CNX Web site]. July 21, 2003. Available at:

American Psychological Assocation (APA) Publication Manual:

Lane, D. (2003, July 21). Variables. Retrieved from the OpenStax-CNX Web site:

Chicago Manual of Style (Bibliography):

Lane, David. "Variables." OpenStax-CNX. July 21, 2003.

Chicago Manual of Style (Note):

David Lane, "Variables," OpenStax-CNX, July 21, 2003,

Chicago Manual of Style (Reference, in Author-Date style):

Lane, D. 2003. Variables. OpenStax-CNX, July 21, 2003.

Modern Languages Association (MLA) Style Manual:

Lane, David. Variables. OpenStax-CNX. 21 July 2003 <>.