Data

Debriefing

Decay

Decentering

Decibel

Declarative Memory

Defense Mechanism

Deindividuation

Déjà Vu

Delta Wave

Delusions

Demand Characteristic

Dendrite

Denial

Dependent Variable (DV)

Depressants

Depressive Realism

Deprivation Study

Depth Perception

Descriptive Statistics

Developmental Psychology

Difference Threshold

Differential Psychology

Differentiation

Discriminant Validity

Discrimination

Disorganized/Disoriented Attachment

Displaced

Displacement

Dissociation

Dissociative Disorders

Dissociative Fugue

Distress

Divergent Thinking

DNA

Door-in-the-Face Technique

Dopamine

Double Dissociation

Double-Blind Procedure

Down Syndrome

Drive

Drive Reduction Theory

DSM

DSM-IV

Dualism

Dyad

Dysphoria

Dysthymia