1. Foundational Developmental Debates and Psychodynamic Theory
Every developmental theory takes a position on recurring debates--nature vs.\ nurture, continuity vs.\ discontinuity--and psychodynamic theory frames development as driven by resolving internal conflict across fixed stages.
Freud's psychosexual stages (oral, anal, phallic, latency, genital) are driven by libido; the unconscious motivates behavior. The nature-nurture debate asks what source drives development; the continuity-discontinuity debate asks whether change is gradual or stage-like.
Nature-nurture debate (source of development) vs.\ continuity-discontinuity debate (pattern of development).
Labeling any stage theory ``psychodynamic''--only Freud's and Erikson's theories belong to that tradition.
Debates first, then camp: nature/nurture $arrow$ continuity/discontinuity $arrow$ context.