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Table 1 Summary statistics

From: Coalitions and coordination in Washington think tanks: board interlock among Washington D.C.-based policy research and planning organizations

Variable Percent true Percent false
Has IG score 28.9 71.1
Has members 14.8 85.2
Hires contractors 55.6 44.4
Engages in lobbying 90.6 9.4
Variable Mean SD
Total revenue $4,085,478.76 $10,572,496.46
Membership dues $61,838.29 $332,845.65
Lobbying spending $12,712.53 $151,517.58
Number of contractors 1.39 3.80
Contributions to democrats $21,936.59 90,503.17
Contributions to republics $9934.49 60,659.49
IGscore (all) − 0.07 0.88
IGscore (real) 0.06 1.09
IGscore (imputed) − 0.12 0.77