Our study supports the view that Jirásek´s test of school readiness (maturity), after 30 years, still an optimal tool for identifying individuals is immature for school, Its advantage and contribution lies in the adequacy of questions in testing preschool children and in the correctness of the criteria used in evaluating and classifying the results. The task which says most about the examined child is drawing of a male figure. The most difficult task for the children has shown to be copying several handwritten words. On the other hand the easiest for them was to copy a set of points. It has been repeatedly demonstrates that girls were significantly better prepared for school than boys of same age. This can be seen also in the number of children who passed successfully the orientation test of school maturity. While girls passed in 85 per cent, boys only in 68 per cent. Children who did not succeed in the given test should be recommended a futher special psychological examination. Not all these children are immature for school education because a temporary indisposition may have influenced the result of the test, and on the other hand the time between the date of the test in spring and that of the beginning of the school year proper on September 1 st is in flavour of the children.

        Key words: preschool age - school maturity - Jirásek´s orientational test of school maturity