This article analyzes the influence of family structure on the hardiness of adolescents aged 16-18 (average age 17.2). The aim was to investigate hardiness of subjects from full, single-parent, and large families. We used the Test of Hardiness Survey and the Noetic Orientations Test (SZhO). The sample comprised 200 subjects, first year university students from families with different compositions: 75 were brought up in a full family, 75 in a one-parent family, and 50 in a large family. A one-way analysis of variance and repeated measures MANCOVA showed that the subjects differ both in their hardiness and the distinctive features of its development. The authors conclude that subjects from full families are less hardy than those from single-parent families, but more hardy than those from large families. Also the hardiness dynamics of children from full, single-parent, and large families differ. Adolescents from single-parent families increase their hardiness further, whereas in students from full families it decreases. This can be explained by specific ways that the students survive the crisis of adolescence. And finally, students from large families demonstrate a similar level of hardiness in comparison with students from full families. This can also be explained by specific ways that they survive the crisis of adolescence. Later, when this crisis is almost over, their hardiness becomes similar to that of students from full families, which has decreased by that time.Keywords: hardiness, commitment, control, challenge, family structure, adolescents introduction During the past 20 years, hardiness has been a subject of study by scientists internationally and in Russia. Although as M.V. Loginova (2010) has pointed out, there are many interpretations of hardiness (e.g., "survivability", or "the courage to be" by P. Tillich et al.), in Russian psychology, the most empirically substantiated theory of hardiness is that of S. Maddi. According to his theory, hardiness is a pattern of attitudes and skills that, together, facilitate resilience under pressure by turning stressful circumstances from potential disasters into opportunities to grow in wis- Kuzmin, I. A. Konopak dom and performance. Hardiness consists of three attitudes: commitment, control, and challenge. Strong commitment refers to the belief that, no matter how bad things get, it is usually best to remain involved with the events and people in one's life, rather than to retreat into isolation and alienation. Strong control is the belief that, no matter how bad things get, it is worth continuing to try to effect outcomes, rather than retreating into powerlessness and passivity. Strong challenge is the belief that stressful changes are normal in life, and provide an opportunity to learn more, rather than being an inappropriate violation of one's right to easy comfort and security (Maddi et. al., 2009).During the last 25 years, some investigations have touched on the problem of hardiness development and the factors that determine hardiness. Khoshaba and Madd...