This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Mental Age ─ Assigned an “age” t o a certain level of test performance. E.g., if 8-year-olds usually got X questions right, 10-year-olds get Y questions right, then a score of: o X = mental age of 8 o Y = mental age of 10 Intelligence Quotient (IQ) ─ Originally defined as ─ (mental age/chronological age) x 100 ─ Standardization 2 Current IQ Tests Wechsler Adult Intelligence Scale (WAIS) ─ 11 subtests o 6 Verbal tests and 5 Performance tests o Scores between subtests can help identify a person’s strengths & weaknesses ─ [clip] ─ On the WAIS… o Mean is 100 o Standard deviation is 15 Standard dev: Reliability Does this test measure int consistently? Yielding same result across times (on Monday vs. on Thursday) or forms (using form A vs. form B)? Validity Does the test measure what it’s designed to? That is, is it a good measure of int? Kinds of validity ─ content: ─ predictive:...
View Full Document
- Fall '07
- Wechsler Adult Intelligence Scale, WAIS, 8-year, mental age, Hypothetical mental ability