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Table 2 Results of maximum likelihood estimation on ERGM parameters

From: Network analysis of gratitude messages in the learning community

Term Dependent variable: Estimate
Parameter Node-based Dyadic Structural
edges
Messages
 − 6.475*** (0.889)  − 5.097*** (0.222)  − 4.229*** (0.110)
nodecov.score
Evaluation score by an instructor
0.056 (0.046)   
nodecov.character
Number of characters in messages
 − 0.0001 (0.0001)   
nodecov.access
Number of discussion forum access iterations
0.005* (0.003)   
nodecov.gratitude
Number of messages with gratitude
0.218*** (0.053)   
nodecov.EGRM
Score of questionnaire
0.020 (0.030)   
nodecov.link
Number of web links in messages
 − 0.003 (0.031)   
nodecov.fig
Number of figures in messages
0.070 (0.063)   
nodefactor.gender.female
Female students
 − 0.109 (0.151)   
mutual
Reciprocal messages
  3.184*** (0.298)  
nodematch.country
Same country
  0.994*** (0.267)  
nodematch.question
Same question number
  0.926*** (0.142)  
nodematch.gender
Same gender
  0.376** (0.170)  
absdiff.score
Homophily in evaluation score
   − 0.114** (0.060)  
absdiff.character
Homophily in character count
   − 0.0001 (0.0001)  
absdiff.link
Homophily in number of web links
  0.044 (0.031)  
absdiff.fig
Homophily in number of figures
   − 0.088 (0.075)  
absdiff.access
Homophily in number of discussion forum access iterations
  0.003 (0.003)  
absdiff.gratitude
Homophily in number of gratitude messages
  0.129** (0.065)  
absdiff.EGRM
Homophily in score of questionnaire
   − 0.059 (0.038)  
istar(3)
Incoming 3 edges
    − 0.046 (0.072)
gwesp.ISP
Incoming shared partner
    − 0.535 (0.677)
gwesp.ITP
Multiple cyclic closure
   0.335* (0.201)
  1. Upper, parameter estimate value; lower, parameter standard error
  2. *p < 0.1; **p < 0.05; ***p < 0.01