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An Introduction to Development: Fundamental Issues in Developmental Psychology What is Developmental Psych? • Basic question: What shapes the way we change over time? • Developmental Psychology - the study of how people change physically, mentally, and socially throughout the lifespan • At every age and stage of life, developmental psychologists investigate the influence of multiple factors on development, including: – – – – – Biological Environmental Social Cultural Behavioral factors DEVELOPMENTAL PSYCHOLOGY’S MAJOR ISSUES: How does our genetic inheritance interact with our experiences in development? – Study similarities caused by our shared biology – How do we learn ways of thinking of acting from those around us? – Biological, psychological & social forces interact DEVELOPMENT’S MAJOR ISSUES: Development means change – change can be abrupt or gradual Types of Growth Patterns DEVELOPMENT’S MAJOR ISSUES: Stability & Change • What developmental traits remain stable over time, and which change? – Studies show our temperament (emotional reactivity & intensity) is stable over time. – As we grow older, our personality stabilizes. – Social Attitudes change with time • Stability give us an identity while Change allows give us hope to make ourselves better Developmental Research Methods: • Cross-sectional - performance of people of different age groups is compared • Longitudinal - performance of one group of people is assessed repeatedly over time • Meta-Analysis – combining the findings of many independent studies