Social Network Analysis:           An Overview                           David Passmore       Workforce Education & Develo...
   The typical research study examines relationships     among variables (focus on variables)     ◦ Data most frequently ...
 A network is composed of a series of nodes   interconnected by communication paths  Examples:     ◦ Physical, as in a s...
   A social network is composed of nodes represented    by individuals or organizations that are linked by    such social...
Often called a “digraph”
   What social relationships are important in workforce    education & development?   How could information about social...
These, and others, are used in SNA
Number of actual links ÷ number of possible non-redundant links
Average of number of links between all possible pairs of nodes
Number of isolates ÷ number of nodes in the network
A subset of nodes that are all interconnected
A node that connects two otherwise unconnected nodes
Social Network Analysis:           An Overview                           David Passmore       Workforce Education & Develo...
Social Network Analysis: An Overview
Social Network Analysis: An Overview
Social Network Analysis: An Overview
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Social Network Analysis: An Overview

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Social Network Analysis: An Overview

  1. 1. Social Network Analysis: An Overview David Passmore Workforce Education & Development
  2. 2.  The typical research study examines relationships among variables (focus on variables) ◦ Data most frequently are organized in a cases-by-variable matrix for analysis ◦ Usually samples from populations, requiring inferential processes to estimate population values  A social network analysis (SNA) studies relationships among entities (focus is on relationships) ◦ Data typically organized in an entity-by-entity matrix ◦ Inferential processes are developed, but rarely usedSocial network analysis focuses on relationships, not attributes
  3. 3.  A network is composed of a series of nodes interconnected by communication paths  Examples: ◦ Physical, as in a storm water management system that connects street drains to corrugated pipes that, eventually, aggregate storm water to treatment plants. ◦ Virtual, as in a network of linked computers ◦ Biological, as in a nervous system composed of synapses that pass chemical or electrical signals among neurons ◦ Networks also can be socialThey are all around us
  4. 4.  A social network is composed of nodes represented by individuals or organizations that are linked by such social factors as friendship, kinship, common interest, or financial exchange. As with any network, the structure of links among nodes in a social network can be represented by a network diagram.
  5. 5. Often called a “digraph”
  6. 6.  What social relationships are important in workforce education & development? How could information about social networks be used for improvement of organization?
  7. 7. These, and others, are used in SNA
  8. 8. Number of actual links ÷ number of possible non-redundant links
  9. 9. Average of number of links between all possible pairs of nodes
  10. 10. Number of isolates ÷ number of nodes in the network
  11. 11. A subset of nodes that are all interconnected
  12. 12. A node that connects two otherwise unconnected nodes
  13. 13. Social Network Analysis: An Overview David Passmore Workforce Education & Development

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