Full Stochastic Actor Oriented Model parameter estimates.
Main, C1 Main, C2 Waves 2-9, C1 Waves 2-9, C2 Waves 1-2, C1 Waves 1-2, C2 No opinion NA, C1 No opinion NA, C2 High thresh., C1 High thresh., C2 Political. or., C1 Political. or., C2
Rate friend W1-W2 11.12*** 8.86***
(1.51) (0.83)
Rate friend W2-W3 6.87*** 5.98*** 6.84*** 6.01*** 6.93*** 5.96*** 6.89*** 5.95*** 6.85*** 5.96***
(0.55) (0.36) (0.69) (0.46) (0.55) (0.41) (0.55) (0.35) (0.60) (0.42)
Rate friend W3-W4 6.97*** 6.48*** 7.02*** 6.65*** 6.94*** 6.40*** 7.01*** 6.54*** 6.97*** 6.47***
(0.58) (0.36) (0.53) (0.32) (0.57) (0.35) (0.65) (0.38) (0.54) (0.38)
Rate friend W4-W5 4.30*** 4.94*** 4.33*** 5.10*** 4.25*** 4.89*** 4.26*** 5.02*** 4.29*** 4.95***
(0.37) (0.28) (0.36) (0.33) (0.37) (0.33) (0.40) (0.27) (0.42) (0.32)
Rate friend W5-W6 3.71*** 4.68***
(0.41) (0.38)
Rate friend W6-W7 8.46*** 7.24***
(2.33) (0.90)
Rate friend W7-W8 3.00*** 3.53***
(0.40) (0.33)
Rate friend W8-W9 1.95*** 2.50***
(0.27) (0.23)
Density friend (intercept) -3.10*** -3.57*** -3.08*** -3.39*** -3.23*** -2.60*** -3.15*** -3.61*** -3.08*** -3.50*** -3.12*** -3.57***
(0.15) (0.10) (0.13) (0.09) (0.42) (0.28) (0.15) (0.11) (0.14) (0.10) (0.14) (0.11)
friend: reciprocity 3.49*** 3.85*** 3.42*** 3.94*** 3.92*** 4.49*** 3.48*** 3.85*** 3.54*** 3.87*** 3.48*** 3.85***
(0.18) (0.14) (0.16) (0.13) (0.40) (0.32) (0.19) (0.14) (0.18) (0.14) (0.18) (0.15)
friend: transitive triplets 0.81*** 1.22*** 0.85*** 1.20*** 1.27*** 1.63*** 0.81*** 1.23*** 0.82*** 1.22*** 0.81*** 1.22***
(0.05) (0.04) (0.05) (0.04) (0.19) (0.12) (0.06) (0.04) (0.05) (0.04) (0.06) (0.04)
friend: transitive recipr. triplets -0.62*** -1.12*** -0.64*** -1.11*** -0.77· -1.39*** -0.62*** -1.12*** -0.64*** -1.14*** -0.62*** -1.12***
(0.09) (0.07) (0.09) (0.06) (0.46) (0.15) (0.09) (0.08) (0.08) (0.08) (0.09) (0.08)
friend: indegree - popularity 0.07** 0.06*** 0.07*** 0.06*** 0.07 0.07 0.07* 0.06*** 0.07* 0.06*** 0.07** 0.06***
(0.03) (0.01) (0.02) (0.01) (0.04) (0.05) (0.03) (0.01) (0.03) (0.01) (0.02) (0.01)
friend: outdegree - popularity -0.18*** -0.20*** -0.19*** -0.20*** -0.25*** -0.23* -0.18*** -0.20*** -0.17*** -0.18*** -0.17*** -0.20***
(0.03) (0.02) (0.03) (0.02) (0.06) (0.10) (0.03) (0.02) (0.03) (0.02) (0.03) (0.02)
friend: outdegree - activity -0.02* -0.01* -0.02** -0.02*** -0.01 -0.08* -0.02* -0.01* -0.02* -0.01* -0.02** -0.01*
(0.01) (0.01) (0.01) (0.00) (0.03) (0.03) (0.01) (0.01) (0.01) (0.01) (0.01) (0.01)
friend: anti-isolate -1.70*** -1.41*** -1.27*** -1.21** -1.96* -2.52** -1.69*** -1.41*** -1.73*** -1.45*** -1.68*** -1.42***
(0.39) (0.35) (0.35) (0.37) (0.77) (0.97) (0.44) (0.42) (0.41) (0.31) (0.34) (0.32)
friend: language 0.23** 0.33*** 0.27*** 0.33*** 0.35** 0.06 0.23** 0.33*** 0.24** 0.33*** 0.23** 0.32***
(0.08) (0.06) (0.07) (0.05) (0.12) (0.09) (0.08) (0.06) (0.08) (0.06) (0.08) (0.06)
friend: same major 0.50*** 0.43*** 0.81*** 0.50*** 0.50*** 0.50***
(0.06) (0.05) (0.09) (0.06) (0.07) (0.07)
friend: gender alter 0.05 0.27*** 0.10· 0.28*** 0.06 0.15 0.05 0.28*** 0.08 0.26*** 0.05 0.27***
(0.07) (0.07) (0.06) (0.06) (0.11) (0.14) (0.07) (0.07) (0.07) (0.07) (0.07) (0.07)
friend: gender ego -0.16· 0.49*** -0.19** 0.36*** -0.39* 0.03 -0.16· 0.50*** -0.16· 0.48*** -0.16· 0.49***
(0.08) (0.08) (0.07) (0.07) (0.16) (0.24) (0.09) (0.08) (0.08) (0.07) (0.09) (0.07)
friend: same gender 0.15* 0.42*** 0.19*** 0.29*** 0.21* -0.10 0.16* 0.42*** 0.17* 0.42*** 0.15* 0.42***
(0.07) (0.07) (0.06) (0.06) (0.10) (0.14) (0.07) (0.07) (0.07) (0.07) (0.06) (0.07)
friend: similar pol. orientation 0.20 -0.05
(0.24) (0.19)
friend: birthyear similarity 0.44 0.45* 0.55* 0.24 0.68 0.23 0.48 0.45· 0.53· 0.40· 0.45 0.45·
(0.29) (0.22) (0.25) (0.18) (0.43) (0.32) (0.30) (0.24) (0.28) (0.24) (0.29) (0.24)
friend: neg.att-pos.att two-pathsa -0.05 0.05 -0.03 -0.00 -0.09 -0.06 -0.03 0.03 -0.14 0.13 -0.05 0.05
(0.05) (0.04) (0.05) (0.04) (0.08) (0.07) (0.05) (0.04) (0.21) (0.09) (0.06) (0.04)
friend: pos.att-neg.att two-pathsa -0.04 0.03 -0.01 0.04 0.07 0.07 -0.01 0.03 0.03 0.02 -0.03 0.03
(0.05) (0.03) (0.04) (0.03) (0.08) (0.05) (0.05) (0.04) (0.15) (0.12) (0.06) (0.03)
friend: pos.att agreement 0.05* 0.02 0.04* 0.03 0.08* 0.02 0.06** 0.03 0.14** -0.06 0.06* 0.02
(0.02) (0.02) (0.02) (0.02) (0.03) (0.05) (0.02) (0.03) (0.05) (0.06) (0.02) (0.02)
friend: neg.att agreement 0.07* 0.06* 0.05· 0.06* 0.04 0.06 0.05 0.09** 0.03 0.09 0.07· 0.06*
(0.03) (0.03) (0.03) (0.03) (0.05) (0.04) (0.03) (0.03) (0.07) (0.06) (0.04) (0.03)
Rate pos W1-W2 6.60*** 7.42***
(0.39) (0.50)
Rate neg W1-W2 4.71*** 4.97***
(0.38) (0.30)
Rate pos W2-W3 6.30*** 7.32*** 6.36*** 7.36*** 5.20*** 6.46*** 4.88*** 5.68*** 6.29*** 7.32***
(0.38) (0.33) (0.41) (0.33) (0.38) (0.36) (0.45) (0.38) (0.40) (0.32)
Rate neg W2-W3 4.79*** 5.43*** 4.82*** 5.42*** 4.67*** 4.90*** 3.30*** 4.10*** 4.78*** 5.42***
(0.35) (0.27) (0.33) (0.35) (0.32) (0.32) (0.35) (0.32) (0.32) (0.28)
Rate pos W3-W4 7.37*** 7.12*** 7.39*** 7.12*** 6.00*** 6.08*** 5.97*** 5.75*** 7.35*** 7.13***
(0.46) (0.30) (0.49) (0.35) (0.46) (0.29) (0.47) (0.39) (0.49) (0.28)
Rate neg W3-W4 4.97*** 5.46*** 5.02*** 5.47*** 4.75*** 5.49*** 2.95*** 4.68*** 4.97*** 5.48***
(0.39) (0.27) (0.44) (0.24) (0.38) (0.31) (0.34) (0.31) (0.41) (0.27)
Rate pos W4-W5 6.52*** 6.73*** 6.56*** 6.76*** 5.62*** 6.19*** 5.07*** 4.67*** 6.53*** 6.72***
(0.43) (0.29) (0.44) (0.42) (0.41) (0.30) (0.41) (0.35) (0.49) (0.29)
Rate neg W4-W5 3.55*** 4.31*** 3.59*** 4.37*** 3.49*** 4.49*** 2.78*** 3.38*** 3.55*** 4.31***
(0.28) (0.22) (0.29) (0.21) (0.30) (0.30) (0.24) (0.26) (0.27) (0.19)
Rate pos W5-W6 5.50*** 5.45***
(0.50) (0.29)
Rate neg W5-W6 3.98*** 4.14***
(0.34) (0.28)
Rate pos W6-W7 4.81*** 5.18***
(0.63) (0.38)
Rate neg W6-W7 3.51*** 4.18***
(0.50) (0.40)
Rate pos W7-W8 5.50*** 5.71***
(0.49) (0.37)
Rate neg W7-W8 3.83*** 4.48***
(0.37) (0.30)
Rate pos W8-W9 4.62*** 5.30***
(0.43) (0.30)
Rate neg W8-W9 3.79*** 4.18***
(0.35) (0.25)
pos.att: outdegree (density) -1.53*** -1.47*** -1.08*** -1.24*** -1.42*** -1.71*** -1.61*** -1.41*** -1.41*** -1.84*** -1.53*** -1.47***
(0.12) (0.07) (0.10) (0.06) (0.25) (0.16) (0.13) (0.08) (0.13) (0.08) (0.12) (0.08)
neg.att: outdegree (density) -1.75*** -1.61*** -1.25*** -1.49*** -1.10*** -1.82*** -1.56*** -1.48*** -1.78*** -1.95*** -1.75*** -1.61***
(0.15) (0.08) (0.10) (0.08) (0.25) (0.17) (0.18) (0.10) (0.17) (0.11) (0.14) (0.09)
pos.att: friend to agreement 0.06* -0.01 0.05* 0.05*** -0.08 0.05 0.02 -0.03 0.08· 0.08* 0.06* -0.01
(0.02) (0.02) (0.02) (0.01) (0.06) (0.05) (0.03) (0.02) (0.04) (0.04) (0.02) (0.02)
neg.att: friend to agreement 0.06· -0.01 0.06* 0.03· 0.06 0.03 0.04 0.00 0.12· 0.05 0.07· -0.01
(0.03) (0.03) (0.03) (0.02) (0.09) (0.07) (0.04) (0.03) (0.07) (0.05) (0.04) (0.03)
pos.att: friend and neg.att two-pathsa -0.11* -0.02 -0.06 -0.03 0.09 -0.08 -0.06 0.01 -0.13 0.05 -0.10* -0.02
(0.05) (0.04) (0.04) (0.02) (0.13) (0.11) (0.06) (0.04) (0.12) (0.09) (0.05) (0.04)
neg.att: friend and pos.att two-pathsa 0.08· -0.07· 0.05 -0.07* -0.24 -0.14 0.12* -0.08* -0.20 -0.33* 0.08· -0.07·
(0.05) (0.04) (0.04) (0.03) (0.17) (0.11) (0.05) (0.04) (0.19) (0.14) (0.04) (0.04)
pos.att: 4-cycles (1)b 0.31*** 0.13*** 0.32*** 0.14*** 0.35*** 0.14*** 0.28*** 0.12*** 0.01*** 0.69*** 0.31*** 0.13***
(0.03) (0.01) (0.02) (0.01) (0.05) (0.02) (0.03) (0.01) (0.00) (0.06) (0.03) (0.01)
neg.att: 4-cycles (1)b 0.63*** 0.26*** 0.66*** 0.26*** 0.83*** 0.34*** 0.55*** 0.21*** 0.02*** 0.01*** 0.63*** 0.25***
(0.07) (0.02) (0.06) (0.02) (0.14) (0.04) (0.08) (0.02) (0.00) (0.00) (0.07) (0.02)
pos.att: shared neg.att (1) to agreementb 0.07 0.01 0.07 0.01 0.24* 0.01 -0.01 -0.03· 0.32 0.06 0.07 0.01
(0.05) (0.02) (0.04) (0.01) (0.10) (0.03) (0.06) (0.02) (0.20) (0.07) (0.05) (0.02)
neg.att: shared pos.att (1) to agreementb 0.18*** 0.07*** 0.13** 0.04** 0.26** 0.05 0.15** 0.03 0.25 0.24* 0.18*** 0.07***
(0.05) (0.02) (0.04) (0.02) (0.09) (0.03) (0.06) (0.02) (0.19) (0.10) (0.05) (0.02)
pos.att: indegree - popularityb 0.65** 0.19** -0.16 0.01 0.10 0.23* 1.02*** 0.21*** 0.10 0.32** 0.64** 0.19**
(0.20) (0.06) (0.18) (0.05) (0.47) (0.10) (0.23) (0.06) (0.43) (0.10) (0.22) (0.07)
neg.att: indegree - popularityb 0.14 0.06 -0.62* -0.01 -0.01· 0.07 0.06 0.07 0.39 0.23 0.16 0.06
(0.37) (0.09) (0.25) (0.08) (0.01) (0.14) (0.46) (0.11) (0.57) (0.15) (0.36) (0.10)
pos.att: indegree neg.att popularityb -0.27 -0.57*** -0.02*** -0.69*** -0.24 -0.19 -0.12 -0.70*** -1.01 -0.50* -0.28 -0.57***
(0.31) (0.09) (0.00) (0.07) (0.59) (0.17) (0.33) (0.10) (0.66) (0.22) (0.34) (0.10)
neg.att: indegree pos.att popularityb -1.02** -0.46*** -0.02*** -0.64*** -0.67 -0.23 -0.01* -0.55*** -0.01 -0.27 -1.02** -0.47***
(0.40) (0.09) (0.00) (0.08) (0.66) (0.16) (0.00) (0.10) (0.01) (0.20) (0.38) (0.10)
pos.att: different neg.att (1) to disagreement type 1ab 0.87*** 0.38*** 0.87*** 0.34*** 0.92*** 0.38*** 0.72*** 0.31*** 0.04*** 0.01*** 0.88*** 0.38***
(0.12) (0.04) (0.10) (0.03) (0.26) (0.06) (0.14) (0.04) (0.01) (0.00) (0.13) (0.04)
neg.att: different pos.att (1) to disagreement type 1ab 0.66*** 0.31*** 0.69*** 0.28*** 0.56*** 0.33*** 0.51*** 0.29*** 0.03*** 0.01*** 0.66*** 0.31***
(0.09) (0.03) (0.07) (0.02) (0.17) (0.05) (0.10) (0.03) (0.01) (0.00) (0.09) (0.03)
pos.att: different neg.att (1) to disagreement type 2ab 0.57*** 0.37*** 0.69*** 0.37*** 0.40· 0.36*** 0.54*** 0.40*** 0.03*** 0.02*** 0.57*** 0.37***
(0.12) (0.04) (0.10) (0.03) (0.22) (0.06) (0.13) (0.04) (0.01) (0.00) (0.12) (0.04)
neg.att: different pos.att (1) to disagreement type 2ab 0.47** 0.36*** 0.37** 0.42*** 0.45 0.29** 0.32· 0.35*** 0.03* 0.02*** 0.47** 0.36***
(0.15) (0.05) (0.14) (0.04) (0.29) (0.09) (0.18) (0.05) (0.01) (0.00) (0.16) (0.06)
Overall max. t-ratio 0.186 0.145 0.224 0.236 0.234 0.293 0.229 0.215 0.204 0.249 0.250 0.249
Param. max. t-ratio 0.040 0.036 0.068 0.068 0.083 0.079 0.055 0.083 0.060 0.091 0.082 0.060
Iterations 8147 8147 2296 3116 3267 3246 2910 3223 2910 2954 2953 2851
***p < 0.001, **p < 0.01, *p < 0.05, ·p < 0.1. SEs in brackets. Bolded variable names correspond to hypothesis-testing parameters. aNewly programmed effect. bEstimate and SE multiplied by 100