The article presents the results of research that pertained to the manner of smartphone use in child upbringing during early childhood. The qualitative research was participated in by: a mother of a two-year-old girl and a mother of a threeyear-old boy. On the basis of the tests I concluded that this device is mainly used by mothers:-to occupy the attention of the child, to allow the mother to perform other activities,-to calm the child down at times of anxiety,-as a reward. The interviews have shown that for the respondents the educational function of smartphone are not significant, although they see them.

The research was aimed to evaluate temperamental and familial determinants in adolescents applying an aggressive strategy of dealing with difficult social situations. The variables in the research study on shaping the strategy used by aggressive youth in difficult situations of social contact were measured with the aid of the author’s questionnaire (RTSS), J. Strelau, A. Angleitner, B. Zawadzki’s temperament survey, A. Roe, M. Siegelman’s PCR form III Questionnaire. The empirical research comprised 499 adolescents (221 girls and 278 boys) aged 13–15. In the light of the conducted research it was stated that temperamental features concerning the characteristics of the strength of neural processes differentiates a high and low level of aggression in reacting to emotional tension. Furthermore, wrong upbringing attitudes characterised by emotional distance or emotional concentration of mothers and fathers towards an adolescent are significant determinants of aggression strategies used by adolescent youth in difficult social situations.