In the following paper we give the results of a study in reading abilities of 447 primary students. The test used belongs to the Neuropsychologic Diagnosis Battery of the Universüy of Havana (DNUH) and we show the general characteristics of those children by analyzing the most important resufts. As well, we ínform about the interna¡ consistency of the test, offering the data referred to difficulty as well as the discriminatory capacity of each itero and reliabilíty.