Reasons why there are few incentives for test publishers to make significant innovations in what is tested or how it is tested are given. A brief discussion of research on growth spurts in the brain, hemispheric differences, and other neurological phenomena is followed by a discussion of some conclusions drawn from this work. While skepticism is…

The British Ability Scales (BAS), published in 1979 (after a national standardization on a representative sample of British children), were revised and republished in January 1983. The BAS is an individually administered cognitive test battery for children aged between 3 and 17 years. It has considerable breadth of test content and provides a…

An attempt to train concrete operational fifth-grade students (N=32) and seventh-grade students (N=32) to perform at the formal operational level on tasks demanding the control of variables are reported. The training was conducted in four individual sessions of approximately 30 minutes each. The training sessions were designed to represent a…