[HMP K-1 tests norms for argentine subjects between 4 years, 6 months and 5 years, 6 months old]

Percentile norms for Thurstone's test HMP K-1 for argentine subjects are presented in this study. This test was administered to a sample of 400 argentine subjects (200 boys and 200 girls) between 4 years, 6 months and 5 years, 6 months old. The HMP K-1 test is composed of four factors: Verbal meaning, Number fluency, Spatial relations and Perceptual speed. Frequency distribution for both sexes and for the whole sample were obtained for each factor. Then the corresponding accumulated frequency distribution was calculated and transformed into percentile rank. These results are shown in Table 1-2-3 and 4. Percentile ranks corresponding to the whole sample are presented in Table 1. Arithmetic means and standard deviations were calculated for each frequency distribution and are presented in Table 2. Percentile norms corresponding to girls are presented in Table 3. In Table 4 percentile norms corresponding to boys are shown. "t" values were obtained between the arithmetic means of scores of boys and girls, finding that significative differences (p less than or equal to .01) only appeared in factors Number fluency and Spatial relations. These norms based on argentine children allow us to compare a child's score with a norm obtained studying children from the same local environment.