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Expanding the Reach of Health Campaigns: Can Community Organizations Serve as Viable Channels of Health Information?
Unformatted Document Text:  Expanding the Reach 17 ______________________________________________________________________________ Predictors β 1 a β 2 β 3 β 4 β 5 ∆ R 2 (%) ______________________________________________________________________________ Block 1: Secular trend .21*** .18*** .18*** .24*** .26*** 4.25*** Block 2: Demographics Age .38*** .34*** .25*** .27*** Age (quadratic function) -.31*** -.28*** -.22*** -.24*** Education .45*** .42*** .38*** .37*** Male -.08*** -.09*** -.01 -.01 23.40*** Block 3: Media use TV viewing -.07*** -.09*** -.09*** Newspaper reading .05*** -.01 -.01 0.70*** Block 4: Health media use .20*** .20*** 3.17*** b Block 5: Organizational membership .08*** 0.59*** (Total R 2 ) (32.11) ______________________________________________________________________________ Notes: a Standardized betas from regression equations that include variables up Block 1 for β 1 , up to Block 2 for β 2 , etc. b Because health media use was not asked in all data waves, Blocks 4 and 5 include data from fewer participants than those in Blocks 1 through 3. N = 11,523 up to Block 3. For Blocks 4 and 5, N = 6038. *p < .05, **p < .01, ***p < .001 The secular trend explained 4.25 percent of the variance in health knowledge ( β = .21, p < .0001), indicating that, over time, respondents became more knowledgeable about health

Authors: Stephens, Keri., Rimal, Rajiv. and Flora, June.
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Expanding the Reach 17
______________________________________________________________________________
Predictors
β
1
a
β
2
β
3
β
4
β
5
R
2
(%)
______________________________________________________________________________
Block 1: Secular trend
.21***
.18***
.18***
.24***
.26***
4.25***
Block 2: Demographics
Age
.38*** .34*** .25*** .27***
Age
(quadratic
function)
-.31*** -.28*** -.22***
-.24***
Education
.45*** .42*** .38*** .37***
Male
-.08*** -.09*** -.01 -.01
23.40***
Block 3: Media use
TV
viewing
-.07*** -.09***
-.09***
Newspaper
reading
.05*** -.01 -.01
0.70***
Block 4: Health media use
.20***
.20***
3.17***
b
Block 5: Organizational membership
.08***
0.59***
(Total R
2
)
(32.11)
______________________________________________________________________________
Notes:
a
Standardized betas from regression equations that include variables up Block 1 for
β
1
, up
to Block 2 for
β
2
, etc.
b
Because health media use was not asked in all data waves, Blocks 4 and
5 include data from fewer participants than those in Blocks 1 through 3. N = 11,523 up to Block
3. For Blocks 4 and 5, N = 6038. *p < .05, **p < .01, ***p < .001
The secular trend explained 4.25 percent of the variance in health knowledge (
β
= .21, p
< .0001), indicating that, over time, respondents became more knowledgeable about health


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