Exam 1: Seciton 1: Introduction

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Define and discuss the term plasticity as it relates to human development. What factors influence plasticity in development? Offer at least one example of plasticity that has operated or is operating in your own life.

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Plasticity is the molding of human traits while simultaneously maintaining some durability of identity. The idea of plasticity is that human development is an ongoing, ever-changing interaction between the body and mind and between the individual and every aspect of his or her environment. Influences that affect plasticity include culture, upbringing, and genes. The example should relate to some aspect of growth in one's life, such as how a high-functioning person on the autism spectrum can eventually earn a college degree. (The autism remains (durability), but with school and other societal interventions, the person can still achieve traditional milestones.)

Imagine you are interested in the relationship between age and reading ability for children at 8 and 12 years old. Briefly define cross-sectional design and summarize how you could test this relationship using that design.

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A cross-sectional design compares groups of people of one age with at least one other group of people of another age at a specific point in time. It is faster than a longitudinal study because all of the data is immediately available. Ideally the participants should be matched at the same socioeconomic level.
To implement a cross-sectional design to test reading, first identify a group of children aged 8 and another group aged 12. Second, evaluate each individual child's reading ability. Finally, compare the children of various ages and look for differences.

Define nature and nurture and give an example of each. Also describe the nature-nurture debate.

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Nature refers to the influence of genes on a person, and nurture refers to environmental influences on a person. Environmental influences include the health and diet of the embryo's mother and continuing lifelong, including family, school, community, and society. An example of nature would be having a gene that predisposes one to addiction. An example of nurture would be having that gene but avoiding addictions as a result of not being exposed to abuse or parental addictions. The debate concerns how much of any person's characteristics, behaviors, or emotions is the result of genes and how much is the result of the person's experiences.

Describe the perspective most modern developmentalists take on the nature-nurture debate and explain epigenetics.

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Describe culture and explain why researchers interested in human development study different cultures.

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Explain Bronfenbrenner's ecological-systems theory and describe his five systems.

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Define cohort, explain its effects, and give an example of one.

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List in order and explain each of the five basic steps of the scientific method.

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What practices must be built into a research study to protect participants?

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What are ethics and why are ethical standards so important to scientific research?

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List at least six factors that have been linked to depression.

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Define a critical period and a sensitive period. Explain the difference between the two periods, and give an example of each.

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Define correlation and give an example. Can one determine cause and effect from correlations? Explain why or why not.

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