Introduction Informational socializing of modern adolescents influences the form of communication as the main source of development and self-determination as the major developmental factor in adolescence. The investigation of links between personal features and moral values and Internet involvement allows defining the problem of correlations between personal and cognitive component of development and prevent cyberbulling and communication on-line risks.

The Objective of the study is to investigate the correlation between basic attitude and moral values of adolescents and the productivity of cognitive processing of social information on the Internet. The hypothesis of the study is the assumption that adolescents with a positive attitude to the mediated world and a high level of moral values reveal greater productivity of cognitive methods of processing social information obtained on the Internet. One of the goals of the research was to identify the relationship between basic beliefs and the Internet addiction in adolescents.

Methods and sampling. The study used the following methods: 1. Basic Belief Scale by R. Yanoff-Bulman (Kalmykova, Padun, 2002); 2. Methods of diagnosing moral values "Fair-Care" (S. Molchanov, A. Podolsky); 3) the author's method of cognitive assessment of social information on the Internet, based on the Crick and Dodge model (Crick, Dodge, 1994); 4. Method of diagnosing Internet-dependent behavior by S.H.Chen. The population aged 13 to 18 years accounted 175 adolescents (49% males and (51% females).

Results. Three groups of adolescents were different in the nature of basic assumptions and the level of development of moral values optimists, pessimists, and ego-centered pessimists, and Internet addicted. Comparative analysis of the cognitive methods of processing social information on the Internet, as well as signs of Internet addiction was carried out.

Conclusions: The hypothesis that positive attitude to the mediated world and belief that they control life, a high level of moral values associated with more productive cognitive methods of processing social information on the Internet has received confirmation. A group of adolescents identified as “pessimists” (perception of the world as hostile, negative image of themselves, lack of confidence in the world and success, low level of moral values) reveal signs of Internet addiction in behaviour.

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.