The DTLA-P:3 is a quick, easily administered test for measuring the general aptitude of young children. It is particularly useful with low-functioning school-age children ages 3-0 through 9-11. It comprises six subTests, measuring cognitive ability in areas such as language, attention, and motor abilities. Significant improvements over the previous editions have been made. The normative data have been stratified by age, geographic region, gender, race, ethnicity, socio-economic status, and parent education. All pictures have been drawn in colour to present a more appealing look to children. Each item on the test has been re-evaluated using both conventional item analysis to choose ‘good’ statistical items and the newer differential item functioning analysis to find and eliminate biased items.