Stephen J. Udvari

Gifted and Non-Selected Children's Perceptions of Academic Achievement, Academic Effort, and Athleticism

Kenneth H. Rubin, Stephen J. Udvari, 1996 .

Competition and the adjustment of gifted children: A matter of motivation

Stephen J. Udvari, B. Schneider, 2000 .

Social-perspective coordination and gifted adolescents’ friendship quality

B. Shore, Stephen J. Udvari, B. Schneider, 2015 .

Closeness and Competition in the Inter-Ethnic and Co-Ethnic Friendships of Early Adolescents in Toronto and Montreal

Stephen J. Udvari, B. Schneider, K. L. Dixon, 2007 .

Cultural and Gender Differences in the Implications of Competition for Early Adolescent Friendship

Stephen J. Udvari, B. Schneider, Sharon S. Woodburn, 2005 .

Competitive Goal Orientations, Quality, and Stability in Gifted and Other Adolescents' Friendships

B. Shore, Stephen J. Udvari, B. Schneider, 2009 .