Background. Within the conditions of information socialization that is transforming communication and placing high demands on the ability of the individual to search, select, critically comprehend social information for decision-making and carrying out moral choices, a new social situation has developed. The research of the relationship between cognitive methods of processing social information on the Internet and shaping the worldview and ideas about the moral regulation in adolescents makes it possible to study the patterns of personality development in the unity of the cognitive and value-moral spheres.

The Objective of the research is to identify cognitive methods of processing social information on the Internet as a factor of developing a picture of the world in adolescent users with varying degrees of involvement and the risk of Internet addiction and moral regulation of relationship between them.

Hypothesis. Cognitive methods of processing information on the Internet are connected with the level of Internet addiction - a high level of Internet addiction corresponds to the low efficiency of cognitive methods of processing information. These methods influence the emerging system of major beliefs and worldview characteristics, and level of sensitivity to situations of moral choice.

Design. The author’s method of assessing social information on the Internet based on Crick and Dodge model (1994), Chen method for diagnosing Internet-addictive behaviour, «The scale of basic beliefs of the person» of R. Yanoff-Bullman (Kalmykova , Padun, 2002), and the author’s method of assessing moral aspects were used. The study involved 84 adolescents from 13 to 18 years (46% males and 54% females).

Results. A comparative analysis of the effectiveness of cognitive processing cycles was conducted and gender differences were revealed. The relationship between Internet addiction and the effectiveness of cognitive processing methods of information on the Internet is verified. The significance of interpretation, behaviour assessment and the ability to construct social adaptive behaviour in communication to shape the major beliefs and moral attitude in adolescence are shown.

Conclusion. There are differences in the effectiveness of cognitive processing cycles of information. High efficiency of short-term, long-term, medium-term perspectives and behavioural responses and the ability to choose adequate social behavior corresponds to a relatively low productivity of interpretation. Internet addiction is interrelated with the low productivity of interpretation. Moral attitude is mediated by the age features of adolescent self-awareness and is related to the effectiveness of information interpretation, the evaluation of behavioural consequences and the choice of appropriate ways of social interaction.