The paper presents the analysis of developmental changes in executive functions in early school­children. 117 first­-graders (7.62±0.45 y.o.) 86 third­-graders (9.64±0.4 y.o.) participated in the study. Qualitative neuropsychological assessment and computer­based tests were used to evaluate the development of executive functions. The comparison of results in first and third graters reveals a significant improvement of temporal characteristics and accuracy of performance of the tests. The results may be evidence of the significant development of executive functions in the primary school age. In addition it is shown that the results of neuropsychological assessment and computer methods may be used as reliable predictors of learning disabilities