Question

OLS Regression on Support for Military Response to North Korea
	Coefficient	SE
V2 (20,000 NK deaths)	−0.259***	0.090
V3 (20,000 SK deaths)	−0.341****	0.091
V4 (20,000 NK and SK deaths)	−0.351****	0.089
Female	−0.088	0.065
Age	−0.007**	0.003
Education	−0.074***	0.026
Household Income	0.013	0.022
Interest in Politics	−0.042	0.035
Political Ideology	0.289****	0.019
Served in Military	0.187	0.126
Constant	2.349****	0.201
N	1,025
Adjusted R2	0.213
Note: ****p<0.001, ***p<0.01, **p<0.05, *p<0.10.

The above results come from a survey experiment where respondents were randomly prompted with one of four possible question wordings. V1 involved no mention of casualties, while V2 through V4 mentioned estimates of 20,000 deaths a day in North Korea ("NK" in the table) and/or South Korea ("SK" in the table). Female and served in military are measured as yes = 1, no = 0; age is measured in years; education, household income, and political ideology are measured on a 1-to-7 scale; interest in politics and support for responding militarily to North Korea are measured on a 1-to-5 scale.

What level of support does the regression predict for a 35-year-old female non-veteran who is very uninterested in politics (that is, at 1 on the relevant scale), graduated from college (that is, at 6 on the relevant scale), is in the median household income category, considers herself ideologically moderate (that is, at 4 on the relevant scale), and received question version V2? Round your answer to the nearest hundredth.

Answer 1

The estimated regression equation is,

Support for Military Response to North Korea = -0.259 V2 -0.341 V3 -0.351 V4 -0.088 Female -0.007 Age -0.074 Education + 0.013 Household Income -0.042 Interest in Politics + 0.289 Political Ideology + 0.187 Served in Military + 2.349

The predictor values are

Age = 35

Female = 1

Served in Military = 0 (non-veteran)

Interest in Politics = 1

Education = 6

Household Income = 4 (median household income category and median of 1-7 is 4)

Political Ideology = 4

V2 = 1, V3 = V4 = 0

Support for Military Response to North Korea = -0.259 * 1 -0.341 * 0 -0.351 * 0 -0.088 * 1 -0.007 * 35 -0.074 * 6 + 0.013 * 4  -0.042 * 1 + 0.289 * 4 + 0.187 * 0 + 2.349

= 2.48