4: 2: Developmental Theories Last updated Jan 14, 2021 Save as PDF 3.9: PowerPoint: Introduction to Life Span Development 4.1: Introduction to Developmental Theories Page ID82453 ( \newcommand{\kernel}{\mathrm{null}\,}\) 4.1: Introduction to Developmental Theories4.2: Psychodynamic Theory4.3: Psychosocial Theory4.4: Exploring Behavior4.5: Exploring Cognition4.6: Research Designs4.7: Lecture Transcript: Developmental Theories4.8: Slideshow: Developmental Theories