In Piaget’s theory, each time the back-and-forth movement between equilibrium and disequilibrium occurs, __________.

When sperm and ovum unite at conception, a(n) __________ results.

Erikson’s sense of __________ combines several developments of middle childhood: a positive but realistic self-concept, pride in accomplishment, moral responsibility, and cooperative participation with agemates.

Mr. and Mrs. Hopewell are concerned because they have been trying without success to have a baby for over a year. Which procedure would you recommend to them?

Motor mastery __________.

Although Betty grew up in a rundown neighborhood, had divorced parents, and rarely saw her father, she is a successful, happy, and healthy adult. Betty’s ability to adapt effectively in the face of threats to development is known as __________.

Adopted children and adolescents tend to __________.

A zygote that separates into two clusters of cells instead of just one produces __________.

Major accomplishments, major breakthroughs, emergencies, or catastrophes typically warrant a(n)

Emma, an intellectually curious child, is a familiar patron at her local library. This is an example of __________.