by Smith, Jessi L., Hardy, Tiffany, Arkin, Robert
Published in Journal of research in personality (01.02.2009)

by Thompson, Ted, Hepburn, Jonathan
Published in British journal of educational psychology (01.06.2003)

by Cox, C B, Giuliano, T A
Published in Journal of social behavior and personality (1999)

by Thompson, Ted, Richardson, Anna
Published in British journal of educational psychology (01.03.2001)