As a part of the research on genetic and environmental factors, which influence IQ level, as well as increased IQ phenotypic markers search, the analysis of relationships between IQ, study motivation and academic success among the Eastern Ukraine youth has been conducted. IQ index was found to be increasing at the stage “secondary school — higher school”. There no relationship was found between IQ and study motivation. Sex differences in study motivation were revealed — there are more females than males with study motivation both among males and females. Positive relationship between IQ index and academic success was found, i. e. one can consider high academic success as a phenotypic marker of increased academic intelligence. Academic success increasing is revealed at the stage “secondary school — higher school”.
