An Introduction to Social Network Analysis. OBJECTIVES: An introduction to the social network analysis perspective and some key social network concepts.

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Presentation transcript:

An Introduction to Social Network Analysis

OBJECTIVES: An introduction to the social network analysis perspective and some key social network concepts. An introduction to two social network software programs: UCINET (for network analysis) and KrackPlot (for drawing network graphs).

SOCIAL NETWORK CONCEPTS: points/nodes lines/ties ego nets versus whole nets valued/non-valued positive/negative graphs/matrices square versus rectangular matrices (adjacency versus incidence matrices) tie strength density centrality (point centrality versus graph centrality) (degree/betweeness/closeness)

A Matrix: A B C D A B C D A Graph: A B C D A Social Network socnet01

A B C D E F G A B C D E F G A B C D E F G A B C D E F G A B C D E F G A B C D E F G SOCNET02SOCNET03 CENTRALITY

DENSITY D = ______2t N(N-1) To calculate density in percentage terms: D x 100

SOCNET04 SOCNET05 D = ____ 2(5) 6(6-1) = __ =.33D = ____ 2(10) 6(6-1) = __ =.67 A B C D E F A B C D E F

SOCNET04SOCNET05 A B C D E F A B C D E F A B C D E F A B C D E F

Another Look at Centrality: Degree, Betweenness, and Closeness a b c d e

SOCNET06 A B C D E A B C D E

Some Useful References on Social Network Methods and Perspectives Berkowitz, S.D An Introduction to Structural Analysis: The Network Approach to Social Research. Toronto: Butterworths. Burt, Ronald "Models of Network Structure." Annual Review of Sociology 6:79_141. Erickson, Bonnie, T.A. Nosanchuk, and Edward Lee "Network Sampling in Practice: Some Second Steps." Social Networks, 3:127_36. Erickson, Bonnie, and T.A. Nosanchuk "Applied Network Sampling." Social Networks, 5(4):367_382.

Freeman, Linton C. 1978/79. “Centrality in Social Networks: Conceptual Clarification.” Social Networks 1: Freeman, Linton C., Douglas R. White, and A. Kimball Romney (Eds.) Research Methods in Social Network Analysis. Fairfax, VA: George Mason University Press. Granovetter, Mark “Network Sampling. Some First Steps.” American Journal of Sociology, 81: Knoke, David and James H. Kuklinski Network Analysis. Beverly Hills, CA: Sage Publications. Kontopoulos, Kyriankos The Logics of Social Structure. Cambridge: Cambridge University Press.

Marsden, Peter "Network Data and Measurement." Annual Review of Sociology 16:435_63. Marsden, Peter V. and Nan Lin Social Structure and Network Analysis. Beverly Hills: Sage Publications. Pattison, Philippa Algebraic Models for Social Networks. Cambridge: Cambridge University Press. Scott, John Social Network Analysis: A Handbook. Second Edition. London: Sage Publications. D.B. Tindall and Barry Wellman "Canada as Social Structure: Social Network Analysis and Canadian Sociology." The Canadian Journal of Sociology, 26(3):

Wasserman, Stanley and Joseph Galaskiewicz (Eds.) Advances in Social Network Analysis. Thousand Oaks, Calif: Sage Publications. Wasserman, Stanley and Katherine Faust Social Network Analysis: Methods and Applications. Cambridge: Cambridge University Press. Wellman, Barry and S.D. Berkowitz (Eds.) Social Structures: A Network Approach. Cambridge: Cambridge University Press.