H
- Habit Formation
- Habituation
- Happiness Set Point
- Harlow’s Rhesus Monkey Experiments
- Health Action Process Approach
- Health Belief Model
- Health Psychology
- Healthy Narcissism
- Hedonic Principle
- Help-Rejecting and Complaining: Defense Mechanism
- Helper’s High
- Hersey-Blanchard Situational Leadership Model
- Herzberg’s Two-Factor Theory
- Highly Emotionally Sensitive Person
- Histrionic Personality Disorder
I
- Ideal Self
- Idealization of Others’ Image
- Idealization of Self-Image: A Defense Mechanism
- Ideas of Reference
- Identification Formation
- Imago Relationship Therapy
- Immature Defenses
- Imposter Syndrome
- Impression Management
- Imprinting
- Impulsivity: A Character Trait
- Incremental Theory
- Individual Psychology
- Industrial Psychology
- Inferiority Complex
- Information Gap Theory
- Information Processing Theory
- Inner Strength
- Insecure Attachment
- Integrative Therapy
- Intellect Models
- Intellectualizing: A Defense Mechanism
- Intention-Behavior Gap
- Interactional Theory of Delinquency
- Interdependence Theory
- Intergenerational Family Therapy
- Intergenerational Transmission of Trauma
- Intermittent Explosive Disorder
- Internal Conflict
- Internal Guidance System
- Internal Working Models
- Internalization
- Interoception
- Interpersonal and Social Rhythm Therapy
- Interpersonal Communication
- Interpersonal Needs Theory
- Interpersonal Style
- Interpersonal Theory
- Interpersonal Therapy (IPT)
- Intersubjectivity Theory
- Intimacy
- Introversion: A Personality Trait
- Invalidating Environment
- Irritability
- Ironic Process Theory
- Isolation of Affects: A Defense Mechanism
J
- James-Lange Theory of Emotion
- Self-Justification
- Johari Window
- Journaling
- Jungian Psychology
- Jung’s Archetypes
K
- Kelley’s Covariation Model
- Klaus Scherer’s Component Process Theory
- Kohlberg’s Stages of Moral Development
- Kübler-Ross Model
L
- Labeling Theory in Criminology
- Lacanian Psychoanalysis
- Law of Contiguity
- Law of Least Effort
- Learned Helplessness
- Learned Industriousness
- Learning by Osmosis
- Learning Theories
- Lewinsohn’s Behavioral Model of Depression
- Life Altering Events
- Life-Course and Developmental Criminology
- Life Course Theory
- Life Events Theory
M
- Magical Thinking
- Magda Arnold’s Appraisal Theory
- Major Depressive Disorder
- Malevolent Creativity
- Malignant Self-Regard
- Manipulative Behaviors
- Marcia’s Identity Status Model
- Marshmallow Study
- Masculine Protest
- Masochistic Personality
- Maximizers and Sufficers
- McClelland’s Three Needs Theory
- Meaning Making Model
- Meaning of Life
- Medication-Assisted Treatment (MAT)
- Memories and Emotions
- Mental Contrasting
- Mental Fatigue
- Mental Health
- Mental Health Benefits of Exercise
- Mental Health Benefits of Nature
- Mental Health Breaks
- Mental Health Health Benefits of Yoga
- Mental Health Mantras
- Mental Hygiene
- Mental Maps
- Mental Set Theory
- Mental Time Traveling
- Metacognition
- Milgram Experiments
- Mind-Body Dualism
- Mind Reading
- Mindful Breathing
- Mindful Eating
- Mindfulness
- Mindfulness-Based Cognitive Therapy
- Mindfulness-Based Stress Reduction
- Mindset
- Mindset Model of Action Phases
- Minimal Group Paradigm
- Mirror Neurons
- Miswanting
- Modeling Psychology
- Mood Congruent Memories
- Mood Convergence
- Mood Disorders
- Moods
- Moral Certainty
- Moral Disengagement Theory
- Moral Justification
- Moral Reasoning
- Moral Reconation Therapy
- Moral Relativism
- Motivated Reasoning
- Motivation Theories
- Motivation Enhancement Therapy
- Motivational Interviewing
- Motivational Orientation
- Multiple Intelligences