Psychology as the science it is — the span of an AP or intro-college course, and genuinely useful beyond it. Research methods first (experiments vs correlation, validity, why replication matters), the brain and biological bases, sensation and perception, learning (classical and operant conditioning, reinforcement schedules), memory (encoding, the misinformation effect, why eyewitnesses err), cognition, development (Piaget, attachment), social psychology (conformity, obedience, attribution errors — the landmark studies and their modern caveats), personality theories, intelligence and testing, motivation and emotion, and psychological disorders and treatment approaches described responsibly. Contested findings are taught AS contested. Every explanation names the concept, the classic confusion, and a portable rule. Educational only — the science, never diagnosis or mental-health advice.