Theories of Human Development Theory-a set of concepts designed in such a way as to organize, describe, & explain certain observations. A good theory is: Parsimonious- as simple as possible, concise Falsifiable- generates predictions that can be tested and disconfirmed. Heuristic- continues to stimulate more complex theories and further testing. Issues in Development: Nature vs. nurture-heredity or environment Active/ passive issue-do children actively contribute to their development or are they passive recipients of the environment. Continuity/ discontinuity issuedevelopment occurs gradually or in stages Quantitative vs. qualitative changesquantitative changes are measurable, qualititative changes are in kind, type Developmental stages-a period of development that is distinct, with its own abilities, behaviors, emotions occurring in a coherent pattern. Psychoanalytic Theories Freud’s Psychosexual theory-the maturation of the libido (sex drive) drives personality development through various stages. His theory was developed through observations of patients who seem to have repressed unconscious motives. These motives arose from sexual and aggressive instincts which are innate to us, but to survive successfully in society must be controlled. Components of Personality: Id – pleasure principle Ego- reality principle Superego- the conscience Stages of Personality Development: fixation is an arrested development at a stage which wasn’t successfully negotiated, so the person returns to it under pressure later in life. Oral- Birth to 18 mo. Anal- 1 – 3 years Phallic- 3-6 years-most important stage- gender identity and morality develop here in response to the Oedipal complex Latency- 6-11 years Genital- age 12 up Erikson’s Psychosocial theory-he adds social influence to the development of personality. He also believes children are more active in their environments, not at the mercy of others as Freud believed. He also believed development occurred all through life, so his stages went through old age. He believed every stage had a life crisis inherent to it, which must be negotiated successfully in order to develop normally. Learning Theories- Behaviorism developed as a reaction to the vagueness of psychoanalytic thought. Behaviorists believed only behavior should be studied, because it can be measured and manipulated. You can’t analyze thought in a scientific manner. Watson’s Behaviorism- he believed observable responses were habits (well-learned associations) that could be changed, depending on experience. The child was a blank slate to be molded by experience. This idea of the child as passive recipients of environmental influence is called environmental determinism. His notable experiment was instilling fear in Little Albert by associating a loud noise with a white rat. He believed all our emotional expressions were learned. This work derived from Pavlov’s Classical Conditioning experiments in Russia. Skinner’s Operant- Learning Theory- he believed that learning was a function of repeated results of behaviors. We increase things that get us positive rewards and decrease doing things that get us punishment or nothing. The only way to know whether a result is a reinforcer or punisher is to examine the effect on the target behavior. Bandura’s Cognitive Social-Learning theory- he believed that learning did not require personal RF or Pun. to occur. People learn from observing others (models) and the results they get- observational learning. He used the Bobo doll experiment to show changes in behavior as a result of observing aggression. Reciprocal determinism is the idea that influence is bidirectional- children influence parents and other siblings, and vice versa. Person – Behavior- Environment triangle Cognitive-Developmental Viewpoint-that the quality of intellectual functioning changes over time in specific ways; intellect is not simply a collection of facts. Piaget’s theory- saw intelligence as a process of adapting to life circumstances, like an amoeba. What motivates learning is disequilibrium- something in the environment forcing us to adapt and change. Scheme- a concept, an organized pattern of thought or action developed to make sense of experience. These concepts are changed through the processes of assimilation and accommodation in order to deal with disequilibrium. We try to return to status quo when we have been disturbed. This process requires adaptation and learning. Stages of Cognitive Development Sensorimotor-Birth to 2 yrs. Preoperational- 2 – 7 yrs. Concrete Operations- 7 – 11 yrs. Formal Operations- 11 yrs. up Vygotsky’s Sociocultural theory- focused on how culture, traditions, ethnic heritage, beliefs and values contributed to how we learn and think and develop. What we learn is mediated by what is valued by the culture. He didn’t believe stages were involved. Information-Processing Theory- builds a model of the human cognitive process (the mind) that looks like computer modules. They examine how information comes in (encoded), is stored, and is retrieved for later use. They test forgetting, strategies for retaining experience and knowledge. Ethological (Evolutionary) Viewpoint-the study of the bioevolutionary bases of behavior. The original theory was developed by Darwin using the theory of natural selection. So if we see a characteristic or learning style today in people, it is due in some way to an adaptation to environmental change that served us in the past- we would not have developed the way we did if it didn’t work for us. We would have died and the learning style died with us. With this theory comes the idea that there are sensitive periods in our development which are optimal for developing a certain skill or ability. If we miss that period, we will have a hard time developing it later. Depth perception, language, attachment, altruism are particularly affected by sensitive periods. Defined originally during imprinting experiments by Lorenz. Ecological Systems Viewpoint- Bronfenbrenner’s model that says the person is embedded in variety of environmental systems that interact with others and influence development. Microsystem- immediate settingparent/child Mesosystem- connections between Microsystems- home and school and day care Exosystem- contexts that support the child- parents’ work, extended family Macrosystem-larger culture- ethnic group, ideology of values, traditions Chronosystem- changes occurring over time that influence the direction of development (children in a home with drinking will be more influenced as the drinking increases and they grow older) World Views- philosophical assumptions Mechanistic vs. organismic model Mechanistic model sees the person as a machine to be deconstructed and understood piecemeal. Person is passive responded to environment. Person changes gradually as parts wear out or are developed. Organismic model sees the person as a whole being who must be understood holistically. Person is active in his/her development and responsive to internal drives. S/he evolves though stages. Contextual model-sees the child as active and development as a result of interplay between person and environment, nature & nurture. Theories of Human Development Theory-a set of concepts designed in such a way as to organize, describe, & explain certain observations. A good theory is parsimonious, falsifiable, heuristic. Issues in Development: Nature vs. nurture Active/ passive issue Continuity/ discontinuity issue Quantitative vs. qualitative changes Developmental stages Psychoanalytic Theories Freud’s Psychosexual theory-the maturation of the libido (sex drive) drives personality development through various stages. His theory was developed through observations of patients who seem to have repressed unconscious motives. These motives arose from sexual and aggressive instincts which are innate to us. Components of Personality: Id – pleasure principle Ego- reality principle Superego- the conscience Stages of Personality Development: fixation Oral- Birth to 18 mo. Anal- 1 – 3 years Phallic- 3-6 years Latency- 6-11 years Genital- age 12 up Erikson’s Psychosocial theory-he adds social influence to the development of personality. Learning Theories- Behaviorism developed as a reaction to the vagueness of psychoanalytic thought. Behaviorists believed only behavior should be studied, because it can be measured and manipulated. Watson’s Behaviorism- he believed observable responses were habits (well-learned associations) that could be changed, depending on experience. The idea of the child as passive recipients of environmental influence is called environmental determinism. His notable experiment was instilling fear in Little Albert by associating a loud noise with a white rat. He believed all our emotional expressions were learned. Skinner’s Operant- Learning Theory- he believed that learning was a function of repeated results of behaviors. We increase things that get us positive rewards and decrease doing things that get us punishment or nothing. The only way to know whether a result is a reinforcer or punisher is to examine the effect on the target behavior. Bandura’s Cognitive Social-Learning theoryhe believed that learning did not require personal RF or Pun. to occur. People learn from observing others (models) and the results they get- observational learning. He used the Bobo doll experiment to show changes in behavior as a result of observing aggression. Reciprocal determinism is the idea that influence is bidirectional- children influence parents and other siblings, and vice versa. Cognitive-Developmental Viewpoint-that the quality of intellectual functioning changes over time in specific ways; intellect is not simply a collection of facts. Piaget’s theory- saw intelligence as a process of adapting to life circumstances, like an amoeba. Scheme- a concept, an organized pattern of thought or action developed to make sense of experience. These concepts are changed through the processes of assimilation and accommodation in order to deal with disequilibrium. We try to return to status quo when we have been disturbed. This process requires adaptation and learning. Stages of Cognitive Development Sensorimotor-Birth to 2 yrs. Preoperational- 2 – 7 yrs. Concrete Operations- 7 – 11 yrs. Formal Operations- 11 yrs. up Vygotsky’s Sociocultural theoryfocused on how culture, traditions, ethnic heritage, beliefs and values contributed to how we learn and think and develop. What we learn is mediated by what is valued by the culture. He didn’t believe stages were involved. Information-Processing Theory- builds a model of the human cognitive process (the mind) that looks like computer modules. They examine how information comes in (encoded), is stored, and is retrieved for later use. They test forgetting, strategies for retaining experience and knowledge. Ethological (Evolutionary) Viewpoint-the study of the bioevolutionary bases of behavior. The original theory was developed by Darwin using the theory of natural selection. With this theory comes the idea that there are sensitive periods in our development which are optimal for developing a certain skill or ability. Depth perception, language, attachment, altruism are particularly affected by sensitive periods. Defined originally during imprinting experiments by Lorenz. Ecological Systems ViewpointBronfenbrenner’s model that says the person is embedded in variety of environmental systems that interact with others and influence development. Microsystem Mesosystem Exosystem Macrosystem Chronosystem World Views- philosophical assumptions Mechanistic vs. organismic model Contextual model