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Adolescence. Cognitive Development. Conceptions of Adolescence. Biological perspective (G. Stanley Hall) Biologically-determined period of “storm-and-stress” Physical changes create psychological conflict Social perspective (Margaret Mead) Turmoil not typical: 2% increase in problems
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Adolescence Cognitive Development
Conceptions of Adolescence • Biological perspective (G. Stanley Hall) • Biologically-determined period of “storm-and-stress” • Physical changes create psychological conflict • Social perspective (Margaret Mead) • Turmoil not typical: 2% increase in problems • Cultural research suggest turmoil is socially determined Both nature and nurture!
When does adolescence begin & end? • Puberty is the physical transition to adulthood • Around 11 or 12 yrs • Girls 2 yrs before boys • Industrialized nations: • Early: 11-14 • Middle: 14-18 • Late: 18-21 • Emerging adults: 21 to ?? • Non-industrialized societies have shorter transition to adulthood Do you like being labeled as an adolescent?
Piaget’s Theory Formal operational stage (12+) • Hypothetico-deductive reasoning: develop general theory & deduce specific hypotheses • Task: pendulum problem What influences the speed with which a pendulum swings?
Piaget’s Theory Formal operational stage (12+) • Hypothetico-deductive reasoning: develop general theory & deduce specific hypotheses • Task: pendulum problem What influences the speed with which a pendulum swings? • Hypotheses • Length of string • Weight of object • Height of object • Force on object School-aged children unsystematic & do not notice all possibilities Adolescents vary one factor at a time while holding others constant
Piaget’s Theory Formal operational stage (12+) • Propositional thought: assess logic of verbal statements without real-world circumstances • Task: Poker chip problem Are the following statements true, false, or are you uncertain? • Either the chip behind the box is green or it is not green. • The chip behind the box is green and it is not green. • True • False • Uncertain • Uncertain
Piaget’s Theory Formal operational stage (12+) • Propositional thought: assess logic of verbal statements without real-world circumstances • Task: Poker chip problem Are the following statements true, false, or are you uncertain? • Either the chip is green or it is not green. • The chip is green and it is not green. • True • False • True • True
Limitation of Theory Are all people capable of formal operations? • 40-60% of college students fail tasks • Experience with the subject matter • Village & tribal societies less likely to master formal operations Piaget’s theory is not completely correct! ** Scientific Reasoning** What influences chances of solving tasks?
Consequences of Abstract Thought • Argumentativeness: use facts, ideas, & hypotheses to build one’s “case” • Can promote cognitive development via scaffolding • Self-consciousness & self-focusing: reflect on own thoughts, make & evaluate judgments • Imaginary audience • Personal fable
“It wont happen to me.” “Everyone is looking at me!” “Mom, you don’t understand.” Personal fable Imaginary audience Personal fable Why do adolescents say…
Consequences of Abstract Thought • Idealism & criticism: enables them to define own values but also criticize others • Sometimes go to the extreme • Planning & decision making: monitor own behavior & evaluate options, but… • Too many options are difficult to handle • Poor or risky decision making can occur ** Gender differences & learning in school **
Video: Inside the Teenage Brain • What part of the brain is still developing in adolescence? • What are the behavioral outcomes of brain development? • Why do adolescence feel misunderstood? • Describe adolescent sleep patterns and how it affect daily life?