Concepts & Theories · Clinician-reviewed
The ideas that shaped modern psychology, explained clearly
Plain-language, evidence-based explainers of the foundational theories in psychology. Read what each idea actually says, where it came from, and what the research supports today.
Attachment Theory →
How early bonds with caregivers shape lifelong patterns of trust, closeness, and security.
Classical Conditioning →
Pavlov's discovery of how a neutral cue learns to trigger an automatic response.
Erikson's Stages of Psychosocial Development →
The eight lifelong conflicts that shape personality, from trust to integrity.
Kohlberg's Stages of Moral Development →
The six stages of moral reasoning, from avoiding punishment to universal principles.