Define heritability. Describe an example of a highly heritable trait and an example of a trait that would have low heritability
What will be an ideal response?
Answer: A good answer will include the following key points.
• Heritability is a statistical estimate of the proportion of the total variance in some trait that is attributable to genetic differences among individuals within a group.
• An example of a highly heritable trait is skin color.
• Most personality traits have relatively high heritability of .50.
• A trait with low heritability would be a preference for listening to jazz.
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Bill is a retired aircraft mechanic, who has agreed to talk to a group of high school students about the early days of commercial aviation. Bill is concerned that any slip in his memory will confirm the belief that all older people are forgetful. Because he is anxious and preoccupied about possible memory lapses, Bill actually does have problems with his memory. This illustrates that
a. negative stereotypes can have a self-fulfilling quality. b. most stereotypes have some degree of truth to them. c. all older people have frequent memory lapses. d. stereotypes are never positive.
Research on compressed work weeks indicates that compressed schedules are associated with:
a. a moderate reduction in absenteeism b. small increases in productivity c. large increases in job satisfaction d. all of these
When the three main biological units, enzymes, tissues, and excretory functions, are in harmonious condition and when the mind and senses are cheerful, this would best describe this medicine system:
a. Traditional Chinese Medicine (TCM) c. traditional Navajo medicine b. Western style medicine d. Ayurveda
The warm cool color distance illusion refers to the fact that
a. artists use reds and yellows in the backgrounds of paintings to give the illusion of three dimensions. b. blues and greens in the foreground of a picture denote three dimensions instead to two. c. reddish colors appear to move toward the viewer whereas bluish his appear to recede into the background. d. colors are perceived as being warmer when presented near the viewer but are judged cooler when moved further away.