The content of the paper refers to the field of interdisciplinary scientific research, lying at the intersection of information theory and cognitive psychology.

Relevance. In conditions of rapid development of communication between people through computers, the transfer and adequate reception of the meaning of an information message are of great importance.

Purpose. Theoretical substantiation and development of the probabilistic approach to the evaluation of the meaning of purposeful human activity on the example of a text.

Methods. Theoretical analysis of probabilistic (V. Nalimov) and activity-related (D. Leontiev) approaches to the problem of meaning in psychology; method of calculating the amount of information developed by K. Shannon; author’s technique for assessing the meaning of a text message, based on a comparative analysis of the source text with its probabilistic representation by random permutation of words.

Results.The justification of the probabilistic nature of sense is given; a psychometric criterion is proposed for quantifying the meaning of purposeful conscious human activity in the form of differential entropy of the exponential distribution of the Shannon entropy difference between two adjacent words in the text; a technique for probabilistic evaluation of the meaning of purposeful conscious human activity taking text as an example is proposed.

The analysis of more than 50 texts - information messages from the Internet, differing in the level of meaningfulness and reflecting various emotional experiences of the authors - showed: a) the greatest meaningfulness is in texts written by authors under the influence of strong emotions; b) texts the style of presentation of which is typical for authors in the state of neutral emotions occupy an intermediate position in terms of meaningfulness; c) the least meaning is in texts written by those who experience some disorder of thinking.

Conclusions. The results confirm the main hypothesis of the study that the meaning is encoded in a chain of semantic connections of purposeful conscious human activity and has a probabilistic nature. The materials of the paper can be of practical and theoretical interest for psychologists dealing with issues of meaning, linguists and developers of artificial intelligence.

The article discusses the main ideas and provisions of the phenomenological-hermeneutic approach to professional development as opposed objectivism psycho-diagnostic methods (tests) and formative approaches. The principle of subjectivity/authorship and moral relationship to ongoing activities are introduces. Available psycho-technics guides and supports the efforts of the “adept” (people who chose the field of their future professional activity) on personal relation to the objectives and the course of his professional development.

First part of the article analyzes the historical and scientific, etymological and methodological problems of psycho-reflexivity personology study self-perception and self-observation – through introspection – a man’s own Self as an integrated personality and social personality. Considered external opposition, socio-objective determination of human mental activity and its internal, reflexive sense of life, the source of which is the individual amateur I. From these positions explicated logic of perceptual psychology: the study of perception through introspection objectivity to subjectivity reflection reflexive self-perpetuating I proposed ontology of psychological reality of the inner life, where its components are incorporated such as: self-actualization, self-perception, self-knowledge, self-understanding, self-awareness, self-determination, selfactualization personality I. In the context of reflexive psychology, personology considered reflexive nature of introspection problem-conflict situations in the self-identity sphere of artistic and scientific creativity. In the second part of the article the proposed theoretical propositions are realized on empirical material reflexive psychological analysis of introspective self-life-creativity outstanding writer and thinker M.M. Zoshchenko. Given held them all his life a dramatic existential introspection M.M. Zoshchenko and corrected to reflect the semantic field of their identity, which was reflected in the development of introspective style as his artistic creativity, and social behavior of the individual. In conclusion, characterized the role of reflective dialogue as a means of enhancing introspective self-perception and self-identity I am human.