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This tutorial introduces 9 sources of threat to internal vailidity and asks the user to classify hypothetical experiments as either internally valid or invalid and identify the source of threat if invalid.
Date Issued 1998
Resource Type
Format
Audience
Source http://psych.athabascau.ca/
Email Address webmaster@server.bmod.athabascau.ca
Date Of Record Creation 2004-07-06 21:42:01
Date Of Record Release 2004-07-06 21:42:01
Date Last Modified 2004-07-27 15:38:23
Statistical Topic
Material Type
Author's Name David Polson
Author's Organization Athabasca University
Supplemental - Evidence
Intended User Role
Application Area
Copyrights
Cost involved with use
Math Level
Date Record Checked: 2004-07-06 00:00:00

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