This page shows information about a web page, and who has bookmarked it and when

http://psych.athabascau.ca/html/Validity/concept.shtml

These are the public entries for this link:

• Internal Validity Tutorial
  By Datamaiden in RESEARCH with internal research tutorial validity
• Internal Validity Tutorial
  By Datamaiden in STATISTICS with internal statistics tutorial validity

NB: The average rating is calculated using the rating for both public and private entries for this link.