Showing off Your Social Capital: Homophily of Professional Reputation and Gender in Journalistic Networks on Twitter

Figures & data

Table 1. Characteristics of journalists active in the mentions, the reply, and the retweet network.

	Mention network	Reply network	Retweet network
	%	%	%
Professional reputation
Featured on APA list	56	55	58
Not featured on APA list	44	45	42
Verified account	8	10	11
Unverified account	92	90	89
High number of followers	25	28	27
Lower number of followers	75	72	73
Gender
Men	60	61	61
Women	40	39	39
Total N of journalists	356	246	264

Table 2. Density table for ties between journalists that are part of the same or different groups with regard to professional reputation indicators and gender.

		Mention network		Reply network		Retweet network
Professional reputation
Featured on APA list		Yes	No	Yes	No	Yes	No
	Yes	0.045	0.018	0.035	0.017	0.022	0.010
	No	0.024	0.012	0.021	0.013	0.017	0.010
Verified account		Yes	No	Yes	No	Yes	No
	Yes	0.173	0.050	0.094	0.038	0.072	0.023
	No	0.076	0.022	0.051	0.020	0.042	0.012
Number of followers		High	Lower	High	Lower	High	Lower
	High	0.108	0.019	0.072	0.015	0.048	0.008
	Lower	0.033	0.008	0.026	0.007	0.018	0.006
Gender		Men	Women	Men	Women	Men	Women
	Men	0.036	0.026	0.031	0.022	0.023	0.013
	Women	0.025	0.031	0.022	0.029	0.014	0.017

Note. Tie densities among and across groups.

Table 3. Variable homophily of professional reputation and gender.

		Mention network	Reply network	Retweet network
Professional reputation (RQ1)
Featured on APA list		Estimate	Estimate	Estimate
	Intercept	0.021	0.019	0.017
	Yes-Yes	0.024***	0.016**	0.009**
	No-No	−0.009	−0.006	−0.004
	R^2	0.006	0.003	0.001
Verified account		Estimate	Estimate	Estimate
	Intercept	0.063	0.044	0.032***
	Yes-Yes	0.110***	0.049**	0.039***
	No-No	−0.042***	−0.025**	−0.020***
	R^2	0.015	0.007	0.006
Number of followers		Estimate	Estimate	Estimate
	Intercept	0.026	0.021	0.013
	High - High	0.082***	0.051***	0.035***
	Lower - Lower	−0.018***	−0.014**	−0.007**
	R^2	0.036	0.021	0.014
Gender (RQ2)		Estimate	Estimate	Estimate
	Intercept	0.026	0.022	0.017
	Men-Men	0.010*	0.009^+	0.010**
	Women-Women	0.005	0.007	0.004
	R^2	0.001	0.001	0.001

+ p < .1; *p < .05; **p < .01; ***p < .001.

Note. Estimates are unstandardized regression coefficients. Homophily was tested based on a ANOVA Density model as variable homophily; Significance Test: N = 5000 trials used in the permutation test. The reference group (intercept) refers to ties between women journalists that differ regarding the attribute examined here.

Table 4. Structural blockmodels of professional reputation and gender.

		Mention network	Reply network	Retweet network
Professional reputation (RQ1)
Featured on APA list		Estimate	Estimate	Estimate
	Intercept	0.012	0.013	0.017
	Yes - Yes	0.032***	0.022*	0.013*
	Yes - No	0.006^+	0.004	0.000
	No - Yes	0.012**	0.008^+	0.007*
	R^2	0.006	0.003	0.002
Verified account		Estimate	Estimate	Estimate
	Intercept	0.021	0.020	0.012
	Yes - Yes	0.151***	0.074**	0.059***
	Yes - No	0.029**	0.018**	0.010*
	No - Yes	0.055***	0.031***	0.029***
	R^2	0.016	0.007	0.007
Number of followers		Estimate	Estimate	Estimate
	Intercept	0.008	0.007	0.006
	High - High	0.101***	0.065**	0.042***
	High - Lower	0.011**	0.008**	0.002
	Lower - High	0.025***	0.019***	0.012***
	R^2	.037	0.021	0.014
Gender (RQ2)		Estimate	Estimate	Estimate
	Intercept	0.031	0.029	0.017
	Men-Men	0.005	0.002	0.005
	Men-Women	−0.005	−0.007	−0.004
	Women-Men	−0.005	−0.006	−0.004
	R^2	0.001	0.001	0.001

+ p < .1; *p < .05; **p < .01; ***p < .001.

Note. Estimates are unstandardized regression coefficients. Homophily was tested based on a ANOVA Density model as Structural Blockmodel; Significance Test: N = 5000 trials used in the permutation test. The reference group (intercept) refers to ties between journalists with lower number of followers.