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.
Uebersax JS, Grove WM.Uebersax JS, et al. Among authors: grove wm.Stat Med. 1990 May;9(5):559-72. doi: 10.1002/sim.4780090509.Stat Med. 1990.PMID: 2190288
Zagar RJ, Grove WM.Zagar RJ, et al. Among authors: grove wm.Psychol Rep. 2010 Dec;107(3):983-1009. doi: 10.2466/02.03.16.PR0.107.6.983-1009.Psychol Rep. 2010.PMID: 21323157