Describe epigenetics, and give an example.
What will be an ideal response?
A good answer would include the following key points:
- Epigenetics is the idea that some environments can influence how much genetics will matter.
- A person born with a gene for major depression may never have that gene expressed unless the environment triggers it.
- Therefore, a happy, healthy environment in childhood might stave off major depression whereas an abusive or impoverished environment would trigger it.
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Which of the following individuals is statistically most likely to attempt suicide?
A. A 78-year-old single white man from Wyoming with chronic back pain B. A 55-year-old African American woman from Maryland who has lost her job C. A 22-year-old Inuit woman who has just had a baby D. A 10-year-old boy from New York who has received a poor report card.
Wolfgang is trying to get his new co-worker, Peter, to like him. He compliments Peter's wardrobe, listens attentively to Peter's stories, and routinely take Peter out to lunch. Wolfgang is clearly engaging in ____
a. ostracism b. propinquity c. ingratiation d. matching
Sara is a pregnant woman who is well past her due date, which was three weeks ago. The doctors decide that they must induce labor in Sara and inject her with _____
A) oxytocin B) vasopressin C) melatonin D) thyroxin
Some threats to internal validity are related to time and other threats are related to differences between groups. What is a threat related to time?
a. history effects b. assignment bias c. selection bias d. differential attrition