Define gene × environment (G × E) interaction. Give an example of a study (either your own or one from the book) that could illustrate the interaction between genes and the environment.
What will be an ideal response?
Gene × environment (G × E) interaction refers to the interaction of a specific measured variation in the DNA and a specific measured aspect of the environment. In a study, adults who experienced parental loss as young children were more likely to have unresolved attachment issues as adults only when they had the short version of the 5-HTTLPR gene. The long version of the serotonin transporter gene apparently provided some protection and ability to cope better with parental loss.
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Research that takes place in an open system as compared to a closed system has:
a. greater control. b. less ability to rule out alternative explanations. c. has greater internal validity. d. all of these
Emily is very controlling and never allows her daughter, Jill, to initiate any activities. According to Erikson, eventually Jill will most likely experience __________ when she tries to act independently.
A. mistrust B. guilt C. role confusion D. stagnation
In an experiment to determine the effects of alcohol consumption on aggression, aggressive behavior would be the
a. treatment. c. control variable. b. independent variable. d. dependent variable.
__________ is the norm for approximately 90 percent of the world’s population
A) Nighttime separation of baby from parent B) Parent?infant cosleeping C) Imposing a strict infant sleep schedule D) Infant crib sleeping