Erikson, Piaget & Psychology Theories & Concepts Explained

Havighurst vs Erikson: 6 Life Periods vs 8 Stages Compared

A 16-year-old fills out her first job application on Saturday and lies awake on Sunday night wondering who she really is. Robert Havighurst would point to the first scene: a concrete skill her culture expects her to learn right now. Erik Erikson would point to the second: an inner struggle over identity. That split sits at the heart of Havighurst...

Erikson and Bronfenbrenner: Why the Same Child Can Turn Out So Differently

Picture a nine-year-old who tells her parents, “I’m just stupid.” Is she stuck in a developmental stage, or is her classroom failing her? That question sits right where Erikson and Bronfenbrenner meet. Erik Erikson described the psychosocial crises people work through across the lifespan. Urie Bronfenbrenner mapped the settings where those crises actually play out. Students often learn them as...

Freud’s Oral Stage: Oral Receptive vs Oral Aggressive Types

Picture two classmates in your 9 a.m. lecture. One has chewed through two pen caps before the professor finishes the first slide. The other has a sarcastic comment ready for every point on the screen. Sigmund Freud would say both habits could trace back to the same starting point: Freud’s oral stage, the period when a baby’s whole world revolves...

Herzberg’s Two Factor Theory: The Surprising Reason Perks Don’t Boost Motivation

Sarah just got the raise she had been asking for all year. Her paycheck went up, her complaints about the parking situation got resolved, and her manager even upgraded her office chair. Three months later, she is just as checked out as before. This is the exact puzzle Herzberg’s two factor theory was built to explain. Some workplace conditions stop...

Groupthink Examples: The 8 Symptoms and the Fix Kennedy Found

Picture a group project meeting where everyone nods along to a plan you privately think is a mistake. You stay quiet because nobody else seems worried, and the plan sails through. Now put that same moment in a room full of presidential advisers or NASA managers, and you have some of the most famous groupthink examples in history. Psychologist Irving...

Cialdini’s Principles of Persuasion: All 7 Principles and the Studies Behind Them

A stranger buys you a soda you never asked for. An hour later, he asks you to buy a few raffle tickets, and somehow you feel like you owe him. That uneasy little yes is exactly what Cialdini’s principles of persuasion were built to explain: the predictable mental shortcuts that nudge people toward agreeing with requests. Robert Cialdini first described...