An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Campione-Barr N, Smetana JG.Campione-Barr N, et al. Among authors: smetana jg.Dev Psychol. 2004 Nov;40(6):927-34. doi: 10.1037/0012-1649.40.6.927.Dev Psychol. 2004.PMID: 15535748
Jambon M, Smetana JG.Jambon M, et al. Among authors: smetana jg.Dev Psychol. 2014 Jan;50(1):22-33. doi: 10.1037/a0032992. Epub 2013 May 6.Dev Psychol. 2014.PMID: 23647415