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Niche NewsThe Politics of News Choice$

Natalie Jomini Stroud

Print publication date: 2011

Print ISBN-13: 9780199755509

Published to Oxford Scholarship Online: September 2011

DOI: 10.1093/acprof:oso/9780199755509.001.0001

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(p.234) Appendix E: Technical Details from Chapter 5

(p.234) Appendix E: Technical Details from Chapter 5

Source:
Niche News
Publisher:
Oxford University Press

The general form for the cross-sectional analysis was:

  • Political variable = b0 + b1 (Ideology/partisanship) + b2 (Partisan media use) + b3 (Ideology/partisanship * Partisan media use) + b4 (Control1) +. . . . bx (Controly) + e

Table E.1 Regression analysis predicting participation with media use and ideology/partisanship (Figure 5.1)

B

SE

Education

0.01

0.01

Income

0.0003

0.0004

Black

0.12+

0.07

Hispanic

0.10

0.08

Female

0.05

0.04

Age

0.001

0.001

Adults in home

–0.07*

0.03

Phone lines

0.11*

0.05

Region 1

–0.06

0.06

Region 2

0.06

0.05

Region 3

0.002

0.05

National news

0.01

0.01

Cable news

0.01

0.01

Local news

–0.02*

0.01

Newspaper

0.01

0.01

NPR

0.02

0.01

Talk radio (non-NPR)

0.03**

0.01

Internet access

0.01

0.05

Political Internet

0.05***

0.01

National news attention

–0.01

0.02

Local news attention

0.09***

0.02

Newspaper attention

0.07**

0.02

Strength of IP

0.20***

0.02

Political discussion

0.11***

0.01

Political knowledge

0.02

0.02

Political interest

0.06*

0.03

Ideology/partisanship (IP)

0.03 **

0.01

Conservative media use (CMU)

–0.02

0.03

IP * CMU

–0.04 **

0.01

Liberal media use (LMU)

0.05 +

0.03

IP * LMU

0.06 ***

0.01

Constant

–0.60***

0.18

R-square

0.32

n

2,892

2004 NAES,

(+) p〈0.10,

(*) p〈0.05,

(**) p〈0.01,

(***) p〈0.001.

(p.235) (p.236) The general form for the panel analyses in E.2 through E.4, E.6, E.7, and E.9 was:

  1. Equation 1: Political variabletime2 = b0 + b1 (Political variabletime) + b2 (Ideology/partisanshiptime1) + b3 (Partisan media usetime1) + b4 (Ideology/partisanshiptime1 * Partisan media usetime1) + b5 (Control1) +. . . . bx (Controly) + e

  2. Equation 2 : Partisan media usetime2 = b0 + b1 (Partisan media usetime1) + b2 (Ideology/partisanshiptime1) + b3 (Political variabletime1) + b4 (Ideology/partisanshiptime1 * Political variabletime1) + b5 (Control1) +. . . . bx (Controly) + e

Note that all the same controls from the cross-sectional analysis were incorporated into the panel analysis, in addition to controls for watching events when the panel spans an event (RNC, DNC, and debates). As before, the number of results is too unwieldy to present in full form. Instead, I summarize the results in the Table E.2, where b2, b3, and b4 correspond with the previously listed equations.

Given the limited evidence, I evaluated the relationship between participation (from the postwave) and partisan selective exposure controlling for intentions to participate (from the prewave). Note, therefore, that Table E.5 does not exactly follow equations 1 and 2 listed previously because the control variable is not the prewave value of the dependent variable.

Table E.2 Summary of panel regression analyses of intentions to participate, media use, and ideology/partisanship

Equation 1

Equation 2

DV: Intentions to Participate b3: Conservative Media Use

DV: Intentions to Participate b3: Liberal Media Use

DV: Conservative Media Use b3: Intentions to Participate

DV: Liberal Media Use b3: Intentions to Participate

DNC panel

b2

0.04*

0.03*

–0.03*

0.03+

b3

0.05

0.01

–0.07*

0.06+

b4

0.02

0.005

–0.003

0.01

RNC panel

b2

0.03+

0.02

–0.01

0.02+

b3

0.03

–0.003

0.04

0.05

b4

–0.02

0.02

–0.02

0.03*

2004 NAES,

(+) p 〈0.10,

(*) p 〈0.05,

(**) p 〈0.01,

(***) p 〈0.001.

(p.237)

Table E.3 Summary of panel regression analyses of participation, media use, and ideology/partisanship

Equation 1

Equation 2

DV: Participation b3: Conservative Media Use

DV: Participation b3: Liberal Media Use

DV: Conservative Media Use b3: Participation

DV: Liberal Media Use b3: Participation

Debate panel

b2

0.03

0.03

–0.06**

0.06**

b3

0.04

–0.05

–0.004

0.06+

b4

0.002

0.02

–0.01

0.01

General election panel

b2

0.03+

0.03+

–0.04***

0.03**

b3

–0.08+

0.03

–0.004

–0.02

b4

–0.03+

0.02

–0.01

–0.003

2004 NAES,

(+) p 〈0.10,

(*) p 〈0.05,

(**) p 〈0.01,

(***) p 〈0.001.

Table E.4 Summary of panel regression analyses of participation, media use, and ideology/partisanship (controlling for intentions to participate measured in the prewave)

Equation 1

Equation 2

DV: Participation b3: Conservative Media Use

DV: Participation b3: Liberal Media Use

DV: Conservative Media Use b3: Intentions to Participate

DV: Liberal Media Use b3: Intentions to Participate

General election panel

b2

0.03

0.02

–0.05***

0.07***

b3

–0.02

0.03

0.02

0.02

b4

–0.08**

0.04*

–0.01

0.02*

2004 NAES, +p 〈0.10,

(*) p 〈0.05,

(**) p 〈0.01,

(***) p 〈0.001.

(p.238)

Table E.5 Logistic regression analysis predicting commitment with media use and ideology/partisanship (Figure 5.2)

B

SE

Education

–0.06***

0.01

Income

0.0005

0.001

Black

0.30**

0.10

Hispanic

0.04

0.10

Female

–0.02

0.06

Age

0.005*

0.002

Adults in home

0.02

0.04

Phone lines

0.05

0.08

Region 1

–0.14

0.09

Region 2

–0.26**

0.08

Region 3

–0.15*

0.08

National news

–0.01

0.01

Cable news

0.002

0.01

Local news

0.001

0.01

Newspaper

0.02

0.01

NPR

0.002

0.01

Talk radio (non-NPR)

0.004

0.01

Internet access

–0.09

0.07

Political Internet

0.02

0.02

National news attention

0.11**

0.04

Local news attention

0.004

0.04

Newspaper attention

–0.03

0.04

Strength of IP

0.57***

0.03

Political discussion

0.08***

0.01

Political knowledge

0.09***

0.02

Political interest

0.14***

0.04

Ideology/partisanship (IP)

–0.02

0.02

Conservative media use (CMU)

0.03

0.05

IP * CMU

–0.09 ***

0.02

Liberal media use (LMU)

–0.04

0.04

IP * LMU

0.10 ***

0.02

Constant

0.34

0.25

Nagelkerke R-square

0.15

n

12,708

2004 NAES,

(+) p〈0.10,

(*) p〈0.05,

(**) p〈0.01,

(***) p〈0.001.

(p.239)

Table E.6 Summary of panel regression analyses of commitment to vote for a candidate, media use, and ideology/partisanship

Equation 1

Equation 2

DV: Commitment b3: Conservative Media Use

DV: Commitment b3: Liberal Media Use

DV: Conservative Media Use b3: Commitment

DV: Liberal Media Use b3: Commitment

DNC panel

b2

0.20+

0.21*

–0.03

0.01

b3

–0.21

0.14

–0.05

–0.06

b4

–0.09

0.27*

0.001

0.02

RNC panel

b2

–0.04

–0.07

0.03

–0.03

b3

0.24

0.12

0.07

–0.10

b4

–0.08

0.05

–0.05

0.08+

Debate panel

b2

0.10

0.05

–0.02

0.05

b3

0.31

0.02

–0.002

–0.001

b4

–0.10

0.11

–0.03

0.01

2004 NAES,

(+) p 〈0.10,

(*) p 〈0.05,

(**) p 〈0.01,

(***) p 〈0.001.

Table E.7 Summary of panel regression analyses of time of decision, media use, and ideology/partisanship (controlling for commitment measured in prewave)

Equation 1

Equation 2

DV: Time of Decision b3: Conservative Media Use

DV: Time of Decision b3: Liberal Media Use

DV: Conservative Media Use b3: Commitment

DV: Liberal Media Use b3: Commitment

General election panel

b2

0.03*

0.03*

0.01

0.02

b3

0.02

–0.09*

0.05+

0.01

b4

–0.02

0.05**

–0.07***

0.04*

2004 NAES,

(+) p 〈0.10,

(*) p 〈0.05,

(**) p 〈0.01,

(***) p 〈0.001.

(p.240)

Table E.8 Regression analysis predicting polarization with media use and ideology/partisanship (Figure 5.3)

B

SE

Education

–0.11***

0.01

Income

0.0001

0.001

Black

0.16

0.10

Hispanic

–0.15

0.10

Female

0.40***

0.05

Age

0.02***

0.002

Adults in home

–0.05

0.04

Phone lines

0.07

0.07

Region 1

–0.04

0.08

Region 2

–0.10

0.08

Region 3

0.09

0.07

National news

–0.02

0.01

Cable news

0.02

0.01

Local news

–0.02+

0.01

Newspaper

–0.02

0.01

NPR

–0.01

0.01

Talk radio (non-NPR)

0.04**

0.01

Internet access

–0.19**

0.07

Political Internet

0.05***

0.01

National news attention

0.13***

0.03

Local news attention

0.02

0.03

Newspaper attention

0.04

0.03

Strength of IP

0.78***

0.02

Political discussion

0.19***

0.01

Political knowledge

0.01

0.02

Political interest

0.26***

0.04

Ideology/partisanship (IP)

–0.03 *

0.01

Conservative media use (CMU)

–0.06

0.05

IP * CMU

–0.08 ***

0.02

Liberal media use (LMU)

–0.13 **

0.04

IP * LMU

0.13 ***

0.02

Constant

3.08***

0.24

R-square

0.21

n

12,841

2004 NAES,

(+) p〈0.10,

(*) p〈0.05,

(**) p〈0.01,

(***) p〈0.001.

(p.241)

Table E.9 Summary of panel regression analyses for partisan media use, polarization, and ideology/partisanship

Equation 1

Equation 2

DV: Polarization b3: Conservative Media Use

DV: Polarization b3: Liberal Media Use

DV: Conservative Media Use b3: Polarization

DV: Liberal Media Use b3: Polarization

DNC panel

b2

0.10*

0.08+

–0.03*

0.03+

b3

0.02

–0.10

0.002

0.01

b4

–0.10+

0.09+

–0.001

0.004

RNC panel

b2

–0.04

–0.04

–0.01

0.03*

b3

0.08

–0.19

0.001

–0.001

b4

–0.06

0.10*

–0.005

0.01+

Debate panel

b2

0.09*

0.08*

–0.04***

0.06***

b3

0.15

–0.03

–0.002

0.002

b4

0.0003

0.004

–0.01

0.004

General election panel

b2

–0.05**

–0.05*

–0.05***

0.06***

b3

–0.03

–0.12*

0.01

–0.002

b4

–0.06*

0.04+

–0.005**

0.004*

2004 NAES,

(+) p 〈0.10,

(*) p 〈0.05,

(**) p 〈0.01,

(***) p 〈0.001.