Question 1

In which network format are the rows and columns the same units of analysis (e.g., people)?&#10;A) Co-appearance network format&#10;B) Nodes and edges format&#10;C) Binary relationship network format&#10;D) None of the above

Accepted Answer

Similarity matrix format would also fit this description.

Question 2

Which network format commonly require two data frames, not one&#10;A) Co-appearance network format&#10;B) Nodes and edges format&#10;C) Binary relationship network format&#10;D) Similarity matrix format

Accepted Answer

There are usually separate data frames for nodes and for edges.

Question 3

In Chapter 8, which network format was used for the study of gender roles of Marvel comic book heroes?&#10;A) Co-appearance network format&#10;B) Nodes and edges format&#10;C) Binary relationship network format&#10;D) Similarity matrix format

Accepted Answer

If Smith and Jones both serve on the same board, then their names would appear in the two columns for a row. In directed networks one also has a third column representing a weighting factor in which numbers below 1.0 reflect opposing direction of the two people in a paired co-appearance.

Question 4

Which of the following could be nodes in a network?&#10;A) Liking&#10;B) Voting for&#10;C) Co-appearing with&#10;D) Agencies

Accepted Answer

While nodes are often people, they can be any object of interest such as agencies. The other choices are relationships are could be edges, not nodes.

Question 5

Relationships between nodes in a network are most often called&#8230;.&#10;A) Edges&#10;B) Arrows&#10;C) Lines&#10;D) Segments

Accepted Answer

The lines which visualize edges typically have arrow-tips but they are still called edges.

Question 6

Which is a leading package in R for the visualization of networks?&#10;A) reticulate&#10;B) lattice&#10;C) web&#10;D) igraph

Accepted Answer

Network visualizations are sometimes called "graphs". The "igraph" package was used, for instance, in Chapter 8's Quick Start Exercise 1, on the Medici family network. The "network" package is another common network visualization package. The "reticulate" package is for interfacing with Python modules. The "lattice" package is part of the R system library and is a high-level data visualization system. While lattice might be used in visualizing networks, this is not its primary purpose nor is it considered a network visualization package. There is no "web" package, at least at this writing.

Question 7

A network in which relationships are one-way is a/an ___________ network.&#10;A) Undirected&#10;B) Directed&#10;C) Could be either A or B&#10;D) Neither A nor B are correct terms in this context

Accepted Answer

A directed network, also known as a directed graph or digraph, is a network in which relationships are one-way, meaning that a connection from node A to node B does not imply a connection from node B to node A.

Question 8

The number of direct relationships a given node has in an undirected network or serves as a &#34;to&#34; node in a directional network is a measure called&#8230;.&#10;A) Eigencentrality&#10;B) Closeness centrality&#10;C) Degree centrality&#10;D) Betweenness centrality

Accepted Answer

Degree centrality is probably the most common centrality metric, but there are more than four dozen types, including the other three choices. Nodes with high degree centrality are very connected in the network, can quickly connect to other parts of the network, and are likely to hold the most information or other resources of value to other network nodes.

Question 9

Which type of centrality metric reflects the number of extended as well as direct network relationships?&#10;A) Eigencentrality&#10;B) Closeness centrality&#10;C) Degree centrality&#10;D) Betweenness centrality

Accepted Answer

Eigencentrality measures the influence of a node in a network by considering both direct connections and the number of links their connections have, extending beyond immediate neighbors to capture a broader range of relationships.

Question 10

Which package(s) discussed in Chapter 8 use cluster analysis to identify &#34;communities&#34; of nodes within a network?&#10;A) igraph&#10;B) linkcomm&#10;C) tidygraph&#10;D) All of the above

Accepted Answer

Communities were illustrated with linkcomm in Quick Start Exercise 2, in the analysis of Marvel Universe connections among comic book heroes. Communities were illustrated with igraph in Section 8.8, in the analysis of U. S. Senators. Communities were illustrated with tidygraph in Section 8.15, in the analysis of city crime.

Question 11

The name of the R package which focuses on network data management and the conversion of data among different network package formats is the ____________________ package.

Accepted Answer

The answer of The name of the R package which...

Question 12

The breakdown of networks into &#34;neighborhoods&#34; is supported by which of the following?&#10;A) igraph&#10;B) network&#10;C) sna&#10;D) tidygraph

Accepted Answer

The answer of The breakdown of networks into &#34;neighborhoods&#34; is...

Question 13

Which of the following is NOT a package for construction of agent-based models?&#10;A) agentnet&#10;B) RSiena&#10;C) NetLogoR&#10;D) SchellingR

Accepted Answer

The answer of Which of the following is NOT a...

Question 14

Which two packages were used in Chapter 8 to create a network superimposed on a map, illustrating international migration? _____________________ and _______________________ .

Accepted Answer

The answer of Which two packages were used in Chapter...

Deck 8: Network Analysis