What is the difference among achievement tests (e.g. a final in a course), aptitude tests (e.g. the SAT or ACT), and intelligence tests (e.g. the Wechsler Adult Intelligence Scale)? Discuss what makes one of these tests more or less valid and/or reliable than another? What genetic and environmental influences might affect a person's score on a test?

[This assignment aligns to objective(s):

• determine the difference between achievement, aptitude, and intelligence tests.
• discuss standardization and the normal curve.
• define reliability and validity.
• explain how stable intelligence scores are over the lifespan.
• discuss the genetic and environmental influences on measures of intelligence.]