Applying Developmental Theories STEP 1: Think of a specific memory from your childhood. Briefly describe the event or experience. STEP 2: Analyze the experience using three developmental theories: psychodynamic, psychosocial, behavioral, cognitive, humanistic, or evolutionary. Use appropriate vocabulary for each theory. Add supporting evidence from your text. Describe how each theory provides you with a new understanding of this experience. STEP 3: Each explanation should be in a paragraph or two between 75-100 words. This will result in 300-400 words total.