1. M. A.Earp Development and validation of the statistics anxiety measure unpublished dissertation Univ. of Denver 2007available athttp://iase-web.org/documents/dissertations/07.Earp.Dissertation.pdf
2. Getting through Statistics with the Help of Metaphors
3. M.Harper Correlation does not imply causation 2016 available athttps://www.causeweb.org/smiles/songs/correlation_not_causationorhttps://www.causeweb.org/cause/resources/fun/songs/correlation-does-not-imply-causation
4. J.Landers Correlation and regression caveats 2008 available athttps://www.causeweb.org/cause/resources/fun/cartoons/correlation‐regression‐caveats