Table 5 Regression of Negative Opinion of President Park’s Administration.

			Regression Coefficient on Hankyoreh Newspaper (Liberal) (Robust)			Regression Coefficient on Chosun Newspaper (Conservative) (Robust)
			B	Robust Standard Error	p-value	B	Robust Standard Error	p-value
MSA Hypothesis 1		Emotional Symbol	−0.710	0.200	0.001***	−0.503	0.242	0.048**
MSA Hypothesis 1		Cognitive Symbols	0.000	0.001	0.846	0.000	0.000	0.784
PET Hypothesis 2	Negative → Positive Feedback	Resigning Prime Minister Chung	−0.020	0.011	0.086*	−0.014	0.006	0.037**
	Negative → Positive Feedback	Chasing Mr. Yoo	0.013	0.009	0.162	0.008	0.005	0.106^┼
	Positive Feedback	Announcing dismantling KCG	−0.021	0.010	0.049**	0.006	0.010	0.558
	Positive & Negative Feedback	Passing Bills & Ending Mission	0.024	0.004	0.000***	0.003	0.002	0.151
	Negative Feedback	Establishing MPSS	−0.018	0.003	0.000***	0.000	0.001	0.884
Control Variables		Negative opinion of the Government	1.267	0.309	0.000***	−0.360	0.490	0.469
		Negative opinion of KCG	0.221	0.468	0.641	0.980	0.519	0.070*
		Economic Factor	−0.139	0.085	0.113	−0.089	0.080	0.275
		Partisan Shift	−0.021	0.009	0.026**	−0.004	0.006	0.508
		Constant	1.088	0.643	0.103^┼	0.675	0.606	0.276
			R² = 0. 755 (Prob > F = 0.000)			R² = 0. 606 (Prob > F = 0.000)

Most assumptions (normality, linearity, homoskedasticity, and no autocorrelation) were met except for heteroskedasticity. Thus, I conducted the robust option to correct it.
***p < 0.01; **p < 0.05; *p < 0.1; ^┼Marginally significant.

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