52,8=1996; 53,8=1997; 54,8=1998 von: American Psychological Association: APA annual report
50,4=1995; 51,4=1996; 52,4=[1997]; 53,4=1998; 54,4=1999; 55,11=2000; 56,11=2001; 57,11=2002; 58,11=2003; 59,8=2004; 60,8=2005; 61,8=2006; 62,8=2007; 63,8=2008; 64,8=2009; 65,8=2010; 66,8=2011; 67,8=2012; 68,8=2013 von: [American psychologist / Awards issue]
55,8=1999 von: American Psychological Association: The American Psychological Association annual report
56,8=2000; 57,8=2001; 58,8=2002; 59,5=2003; 60,5=2004; 61,5=2005; 62,5=2006; 63,5=2007; 64,5=2008; 65,5=2009; 66,5,Suppl.=2010; 67,5,Suppl.=2011; 68,5,Suppl.=2012; 69,5,Suppl.=2013; 70,5,Suppl.=2014 von: American Psychological Association: Annual report