1. abusive relationship: when one partner in a relationship becomes violent or aggressive toward the other.
2. accommodation: according to Piaget, changing existing knowledge based on new knowledge.
3. achievement status: identity status in which adolescents have explored alternative identities and are now secure in their chosen identities.
4. active euthanasia: deliberate ending of someone's life.
5. activities of daily living (ADL's): self-care tasks such as eating, bathing, toileting, walking, or dressing.
6. activity: dimension of temperament defined by the tempo and vigor of a child's activity.
7. adaptation level: area where environmental press is average for a particular level of competence.
8. addiction: physical dependence on a particular substance, such as alcohol.
9. adolescent egocentrism: self-absorption that is characteristic of teenagers as they search for identity.
10. aerobic exercise: exercise that places a moderate on the heart by maintaining a pulse rate between 60% and 90% of the maximum heart rate.
11. age discrimination: denying a job or promotion to someone solely on the basis of their age.
12. age integrated housing: where people of all ages live together and interact.
13. age of viability: age at which a fetus can survive because most of its bodily systems function adequately; typically at seven months after conception.
14. age-segregated housing: where all residents are of the same age.
15. agreeableness: dimension of personality associated with being accepting, willing to work with others, and caring.
16. alert inactivity: state in which a baby is calm with eyes open and attentive, and the baby seems to be deliberately inspecting the environment.
17. alienation: when workers feel that what they are doing is meaningless, that their efforts are devalued, or when they do not see the connection between what they do and the final product.
19. altruism:...