In response to an unknown trigger, the immune system may begin producing antibodies that instead of fighting infections, attack the body's own tissues. Treatment for autoimmune diseases generally focuses on reducing immune system activity.
What's taught in school. Some of the items in standardized achievement tests measure the knowledge or skills that students learn in school. In certain subject areas, such as mathematics, children learn in school most of what they know about a subject.
a commonly used standardized intelligence test that yields an IQ score. intelligence quotient (IQ) a single number that represents a child's intelligence, computed by dividing the child's mental age by the child's chronological age and multiplying the result by 100. Wechsler Adult Intelligence Scale (WAIS-III) a commonly used intelligence test whose combined verbal and performance subtest scores yield an IQ score.