<p>Comparative scores from the Griffiths Extension Scale for S's from five to eight years of age from two groups are presented. The ex­perimental group was made up of children with cerebral palsy and the control was a group of normal Ss matched by age, sex, and socioeconomic level. The scores were as expected in relation to normalization values for local populations, previously found by the Harvard-ICBF-Comell Research Project on Malnutrition and Mental Development in Bogota, thus suggesting that the administration of this instrument can be, in practice, carried out for nor­mal and abnormal Ss of school age under local conditions in Bogota, Colombia.</p>