Overview
Chapter 11
Social networks and health behavior
Multiple Choice Questions
1. A person who previously did not engage in physical activity starts exercising after starting a new job in which her new colleagues regularly engage in and talk about exercise. This is an example of:
a. Selection
b. Influence
c. Social support
d. Density
e. None of the above
Ans. a
2. The concept of friends of friends becoming friends refers to:
a. Transitivity
b. Centralization
c. Density
d. Homophily
e. Reciprocity
Ans. b
3. Which phrase best describes individuals with bridging positions?
a. They are especially sensitive to community norms and values
b. They may feel isolated as a result of their peripheral location
c. They are free from social norms of the community
d. They connect otherwise disconnected groups of people
e. They may feel more constrained by their immediate personal network
Ans. d
4. Which scenario is an example of homophily?
a. Graduating college students attending a job fair to connect with prospective employers
b. Females are more likely to name male friends than vice versa
c. Smokers tend to befriend other smokers
d. Substance abusers are more likely to befriend non-substance abusers
e. Close friends are most likely to provide emotional support than distal friends
Ans. c
5. Which statement does NOT describe individuals with central positions in their social network?
a. They learn about new ideas and have access to information earlier than others
b. They are more sensitive to community norms and values
c. They occupy strategic positions in the network
d. They are identified by high scores on algorithms which identify important nodes
e. They are weakly connected to others in their network, allowing them to exchange valuable information with different groups
Ans.e
6. The number of links in the network divided by the number of possible links is called:
a. Density
b. Clustering
c. Transitivity
d. Centrality
e. Bridging
Ans.a
7. What intervention was effective in reducing tobacco use among adolescents in the United Kingdom?
a. Using popular peer opinion leaders to promote anti-smoking norms
b. Supporting conversations about tobacco use between parents and adolescents
c. Promoting homophily by encouraging non-smokers not to interact with smokers
d. Creating opportunities for adolescents to disclose tobacco use
e. Punishing adolescents for tobacco use and rewarding them for cessation
Ans. a
8. Highly clustered networks with pockets of dense interconnectivity:
a. Facilitate behavior change within and between clusters
b. Slow behavior change within and between clusters
c. Do not influence the rate of diffusion of innovations or behavior change
d. Facilitate behavior change within the cluster but slow behavior change between clusters
e. Have many peripheral and bridging members
Ans. d
9. In a study to understand the adoption and diffusion of contraceptive use in Korean villages, which factor was found to be an important influence of behavior?
a. The family planning behaviors of village opinion leaders
b. The cost of contraceptives
c. The reciprocity among social connections
d. Emotional and instrumental support
e. The frequency of interactions with a healthcare provider
Ans. a
10. In order to address the challenges related to estimating network influences on behavior, networks statisticians may use all of the following approaches EXCEPT:
a. Assign the network to be the dependent variable and the behavior to be the independent variable
b. Exponential random graph models with cross-sectional data
c. Stochastic actor-based models with longitudinal data
d. Specify the attributes of the nodes in the network using statistical software
e. Treat all data as independent regardless of network characteristics
Ans. e
Reviews
There are no reviews yet.