***** To join INSNA, visit http://www.insna.org ***** Greetings, I am seeking help on some data "organization" question that I have. Generally, I am trying to distinguish whether the data I have can be used to take a measure of structural holes using the constraint score described by Burt (1992). For several years, I have studied the way that nonprofits' (and their self-identified community) networks change after interventions. The research focuses on the changing structure of structural holes and evaluates whether this intervention can be identified as the cause of these changes. I am however, unsure of the "level" of data that is required to do this. I am uncertain whether I have gathered the appropriate data to measure structural holes. Here's what I mean: Level 1: I first asked each nonprofit (ego) to identify the organizations most important to their organizational mission. Then, I asked 14 questions about the relationship with each (level of contact, sharing of clients, funding network, trust, etc...) Level 2: I then asked each organization that the ego identified to respond to the same 14 questions and to list important partners in their network (Level 3). I stopped at this level because of time and cost constraints (each network at this point has between 80-150 nodes). Finally, I went back to the original egos and asked them to comment on their connections with Level 3 organizations. With this network data, I was hoping to take a constraint score on each network and compare the scores pre- and post-intervention. After really thinking this through though, I am concerned that I would have had to gather one more level of network connections. Could anyone advise me on this question? I can provide an imagine it that would help explain this, but didn't want to attach it to this group email. Many thanks in advance! Kind regards, Danielle Danielle M Vogenbeck University of Colorado, Denver Graduate School of Public Affairs _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.