1. Copyright © Allyn and Bacon 2006 I CAN Distinguish Nature vs Nurture Distinguish Nature vs Nurture Distinguish Continuity vs Discontinuity Distinguish Continuity vs Discontinuity Copyright © Allyn & Bacon 2007

2. Copyright © Allyn and Bacon 2006 Copyright © Allyn & Bacon 2007 How Do Psychologists Explain Development? Development is a process of growth and change brought about by an interaction of heredity and the environment

3. Copyright © Allyn and Bacon 2006 Copyright © Allyn & Bacon 2007 Developmental Psychology The study of how organisms change over time as the result of biological (nature) and environmental (nurture) influences The study of how organisms change over time as the result of biological (nature) and environmental (nurture) influences

4. Copyright © Allyn and Bacon 2006 41 Years in 60 Seconds (1966 - 2007) Watch video on Youtube Watch video on Youtubehttp://www.youtube.com/watch?v=ZGgd0DUKok4 Copyright © Allyn & Bacon 2007

5. Copyright © Allyn and Bacon 2006 The Nature-Nurture Interaction Long-standing debate over the relative importance of nature (heredity) and nurture (environment) in their influence on behavior and mental processes

6. Copyright © Allyn and Bacon 2006 The Nature-Nurture Interaction Twin Studies Developmental investigations in which twins, especially identical twins, are compared in the search for genetic and environmental effects

7. Copyright © Allyn and Bacon 2006 The Nature-Nurture Interaction Identical Twins A pair who started life as a single fertilized egg which later split into two distinct individuals Fraternal Twins A pair who started life as two separate fertilized eggs that happened to share the same womb

8. Copyright © Allyn and Bacon 2006 The Nature-Nurture Interaction Adoption Studies Studies in which the adopted child’s characteristics are compared to those of the biological family and the adoptive family

9. Copyright © Allyn and Bacon 2006 Twins Separated at Birth Watch video on Youtube http://www.youtube.com/watch?v=0yTCShemS_0

10. Copyright © Allyn and Bacon 2006 Copyright © Allyn & Bacon 2007 Gradual versus Abrupt Change  Continuity View  Perspective that the development is gradual and continuous  Children become more skillful in thinking, talking, acting…in the same way they become taller….through gradual development

11. Copyright © Allyn and Bacon 2006 Copyright © Allyn & Bacon 2007 Gradual versus Abrupt Change  Discontinuity View  Development proceeds in an uneven fashion…it can occur in bursts

12. Copyright © Allyn and Bacon 2006 Copyright © Allyn & Bacon 2007  Continuity View vs. Discontinuity View Age Performance Continuity view Discontinuity view

13. Copyright © Allyn and Bacon 2006 CAN I?  Distinguish Nature vs Nurture  Distinguish Continuity vs Discontinuity Copyright © Allyn & Bacon 2007