Unit 9: Developmental Psychology CHS AP Psychology Unit 9: Developmental Psychology Essential Task 9.1: . Detail how psychologists study development including longitudinal studies, cross-sectional studies, and autobiographical studies. Logo Green is R=8 G=138 B=76 Blue is R= 0 G=110 B=184 Border Grey is R=74 G=69 B=64
Developmental Psychology Issue Details Nature/Nurture How do genetic inheritance (our nature) and experience (the nurture we receive) influence our behavior? Stability/Change Do our early personality traits persist through life, or do we become different persons as we age. Continuity/Stages Is developmental a gradual, continuous process or a sequence of separate stages? OBJECTIVE 1| State the three areas of change that developmental psychologists study, and identify the three major issues in developmental psychology.
Continuity vs. Stages Continuity Stages
How do we study development? Best Choices Cross-Sectional Study Longitudinal Study Biographical or Retrospective Study
Cross-Sectional Study Study people of different ages at the same point in time Advantages Inexpensive Can be completed quickly Low attrition (loss of numbers) Disadvantages Different age groups are not necessarily much alike Differences may be due to cohort differences rather than age
Longitudinal Study Study the same group of people over time Advantages Detailed information about subjects Developmental changes can be studied in detail Eliminates cohort differences Disadvantages Expensive and time consuming Potential for high attrition Differences over time may be due to assessment tools and not age
Biographical or Retrospective Study Participant’s past is reconstructed through interviews and other research about their life Advantages Great detail about life of individual In-depth study of one person Disadvantages Recall of individual may not be accurate Can be expensive and time consuming