A fact from Harvey A. Carr appeared on Wikipedia's Main Page in the Did you know column on 18 May 2009 (check views). The text of the entry was as follows: Did you know... that John B. Watson and Harvey A. Carr conducted a study called the kerplunk experiment, so named because of the sound the rat made when hitting the end of a maze? A record of the entry may be seen at Wikipedia:Recent additions/2009/May.

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I would like to thank the Wikipedian who created the article on this psychologist. I made a request just recently for this article,and see that is up there already - and who ever wrote it has done a good job. ACEOREVIVED (talk) 20:15, 14 May 2009 (UTC)[reply]

Hi, the article states that H. A. Carr was born in Illinois (Morris), but the birth certificate reference states Marshall (this should be in Indiana State and not Illinois).

Can anyone check this and provide the actual place of birth? According to Hothersall and Lovett "History of Psychology" 5 th edition p.296; they state that Carr was born in Indiana. 79.167.49.186 (talk) 10:25, 22 February 2024 (UTC)[reply]