Erikson, Piaget & Psychology Theories & Concepts Explained

Carol Gilligan’s Ethics of Care: Why Kohlberg’s Moral Stages Got Women Wrong

Gilligan’s ethics of care emerged as a direct challenge to the most influential model of moral development in psychology — and it permanently changed the field. Carol Gilligan, once a student and research collaborator of Lawrence Kohlberg, identified a critical flaw in her mentor’s work: his six-stage framework was built entirely on data from boys and men, then presented as...

Theory of Mind: The Hidden Skill Behind Empathy, Lying, and Persuasion

Theory of Mind (ToM) is a social-cognitive skill that refers to the ability to understand that others have beliefs, desires, intentions, and perspectives that are different from one’s own. In developmental psychology, this milestone typically emerges between the ages of 3 and 5. Mastering Theory of Mind is essential for social interaction, as it allows individuals to predict the behavior...

The ABC Model of Attitudes: Components, Examples, and Why the Three Don’t Always Agree

The ABC model of attitudes is a psychological framework that breaks any attitude down into three distinct components: Affective (your emotional reactions), Behavioral (your actions and tendencies), and Cognitive (your thoughts and beliefs). Also known as the tripartite model of attitudes, it gives researchers — and curious people — a way to understand not just what we think about something,...

Bronfenbrenner’s Ecological Systems Theory: How Your Environment Shapes Who You Are

Bronfenbrenner’s ecological systems theory proposes that human development is shaped not by a single factor, but by five layers of interconnected environments — from your immediate family and classroom all the way to the broader culture you live in. Developed by Urie Bronfenbrenner in the 1970s, this framework is a cornerstone of developmental psychology and a core topic in AP...

Ego Integrity vs Despair: Erikson’s Stage 8 and the Psychology of Aging Well

Integrity vs despair is the eighth and final stage in Erik Erikson’s theory of psychosocial development, occurring in late adulthood (ages 65 and up). At this stage, people look back on their lives and ask a fundamental question: did it mean something? Those who can answer yes — who can accept both their achievements and their regrets as part of...

Freud’s Oral Stage Explained: Fixations, Weaning & Adult Personality Traits

Freud’s oral stage is the first of his five psychosexual stages, spanning from birth to around 18 months. During this window, a baby’s primary source of pleasure, comfort, and early learning is centered on the mouth — through sucking, feeding, and oral exploration. How caregivers handle feeding and weaning during this period, Freud argued, quietly shapes personality traits that follow...