Prejudice itself is inevitable

Which of the following is a criticism of Piaget's ideas regarding formal operations?

a. Not all adolescents in the same country appear to develop formal operational thought. b. It may occur earlier than Piaget thought. c. It is less likely to develop in adolescents from Western societies than in less-developed nations. d. It was based entirely on his observation of European adolescent girls.

_____ is an example of an ergonomic centered job analysis method

a. The AET b. Task analysis c. The PAQ d. The Ammerman technique