LIST OF ENTRIES: Abecedarian Research Project, Abortion, Abstract reasoning, Accommodation, Acquired immune deficiency syndrome (AIDS), Activities of daily living (ADLs), Activity theory, Acupuncture, Adaptation, Addiction, Alfred Adler, Adolescence, Adoption, Advance directives, African Americans, After-school programs, Age discrimination, Ageism, Aggression, Aging, Aging parents, Aging well, Mary Salter Ainsworth, Alcoholics Anonymous, Alcoholism, Alleles, Allergy, Altruism, Alzheimer®s disease, American Academy of Pediatrics, American Association of Retired Persons (AARP), American Psychological Association, American Psychological Society, American Sign Language (ASL), Americans with Disabilities Act, Louise Ames, Amnesia, Amphetamines, Androgyny, Anemia, Anger, Anorexia nervosa, Anti Semitism, Antisocial behavior, Anxiety disorders, Apgar score, Virginia Apgar, Apnea, Applied behavior analysis, Aptitude, Aptitude tests, Arteriosclerosis, Asperger syndrome, Assimilation, Assisted living, Assisted suicide, Asthma, Athletics, Attachment, Attention, Attention deficit hyperactivity disorder (ADHD), Attention span, Attitude, Attribution theory, Authoritarian parenting style, Authoritative parenting style, Autism, Average life expectancy, Babbling, Babinski reflex, Baby boomers, baby talk, Baltimore Longitudinal Study on Aging, Albert Bandura, Bar/Bat Mitzvah, Roger Barker, Battered child syndrome, Battered woman syndrome, Diana Baumrind, Nancy Bayley, Bayley Scales of Infant Development, Bereavement, Bereavement overload, Berkeley/Oakland Longitudinal Studies, Bilingualism, Alfred Binet, Binge drinking, Binge eating, Biological clock, Birth defects, Birth order,