The general system of schoolchildren's literary development assessment is proposed. As a criterion the author uses the notion of "social-psycho-logical standard" offered by K. M. Gurevich. The strategy of a search for such a standard for an adult (concerning perusal of a concrete lyric) and a modification of it depending on education and age levels are stated. The resulting age standards enable one to assess the outcome of literary teaching in different grades and so to assess different types of teaching.