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An Invisible Leverage in the Adoption of Online Social Support Community
Unformatted Document Text:  Running Head: Invisible Leverage in Adoption of Online Social Support Community 33 Table 5. Curvilinear Regression Analysis of Duration Activity of Major Contributors on Adoption Blocks of Independent Variables Std. Beta R-square Change Total R-square Adjusted R-square Toleranceª Centered DAMC .015 .000 .000 -.005 1.000 Centered DAMC Centered DAMC2 -.238 .284 .017 .017 .006 .205 .205 Postings per Adopter Centered DAMC¹ Centered DAMC2¸Centered DAMC3¹ .084 -2.097 2.102 .010 .027 .011 .067 .002 .002 Centered DAMC .229* .052** .052 .047 Centered DAMC Centered DAMC2 -.290 .582** .069** .122 .112 Duration of Adopter Centered DAMC Centered DAMC2 Centered DAMC3 -.516 2.251 -1.473 .005 .127 .113 Centered DAMC -.004 .000 .000 -.005 Centered DAMC Centered DAMC2 -.236 .261 .014 .014 .003 Postings per Adopter Excluding Major Contributor Centered DAMC Centered DAMC2 Centered DAMC3 .112 -2.320 2.278 .012 .026 .010 Centered DAMC -.221* .049** .049 .044 Centered DAMC Centered DAMC2 -.788** .636** .083** .132 .122 Duration of Adopter Excluding Major Contributor Centered DAMC Centered DAMC2 Centered DAMC3 -1.214** 3.786* -2.780* .018* .150 .136 Centered DAMC -.071 .005 .005 .000 Centered DAMC Centered DAMC2 -.405* .375* .029* .034 .023 Proportion of Adopters Among Posters Centered DAMC Centered DAMC2 Centered DAMC3 .237 -4.376** 4.193** .041** .075 .060 Centered DAMC .006 .000 .000 -.005 Centered DAMC Centered DAMC2 -.191 .221 .010 .010 -.001 Network Activeness Centered DAMC Centered DAMC2 Centered DAMC3 .070 -1.710 1.705 .007 .017 .001 ¹ Duration Activity of Major Contributors (After Centering) ² Duration Activity of Major Contributors Squared (After Centering) ³ Duration Activity of Major Contributors Cubed (After Centering) *p<.05, **p<.01 ªSince the level of tolerance for cubic relationship is close to ‘0,’ significant cubic relationship will not be considered here.

Authors: Yun, Haejin., Park, Songyi. and Kim, Hee-Jung.
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Running Head: Invisible Leverage in Adoption of Online Social Support Community
33
Table 5. Curvilinear Regression Analysis of Duration Activity of Major Contributors on Adoption
Blocks of Independent Variables
Std. Beta
R-square
Change
Total
R-square
Adjusted
R-square
Toleranceª
Centered
DAMC
.015 .000 .000 -.005 1.000
Centered DAMC
Centered DAMC2
-.238
.284
.017
.017
.006
.205
.205
Postings per
Adopter
Centered DAMC¹
Centered DAMC2¸
Centered DAMC3¹
.084
-2.097
2.102
.010
.027
.011
.067
.002
.002
Centered DAMC
.229*
.052**
.052
.047
Centered DAMC
Centered DAMC2
-.290
.582**
.069**
.122
.112
Duration of
Adopter
Centered DAMC
Centered DAMC2
Centered DAMC3
-.516
2.251
-1.473
.005
.127
.113
Centered
DAMC
-.004 .000 .000 -.005
Centered DAMC
Centered DAMC2
-.236
.261
.014
.014
.003
Postings per
Adopter
Excluding
Major
Contributor
Centered DAMC
Centered DAMC2
Centered DAMC3
.112
-2.320
2.278
.012
.026
.010
Centered DAMC
-.221*
.049**
.049
.044
Centered DAMC
Centered DAMC2
-.788**
.636**
.083**
.132
.122
Duration of
Adopter
Excluding
Major
Contributor
Centered DAMC
Centered DAMC2
Centered DAMC3
-1.214**
3.786*
-2.780*
.018*
.150
.136
Centered DAMC
-.071
.005
.005
.000
Centered DAMC
Centered DAMC2
-.405*
.375*
.029*
.034
.023
Proportion
of Adopters
Among
Posters
Centered DAMC
Centered DAMC2
Centered DAMC3
.237
-4.376**
4.193**
.041**
.075
.060
Centered
DAMC
.006 .000 .000 -.005
Centered DAMC
Centered DAMC2
-.191
.221
.010
.010
-.001
Network
Activeness
Centered DAMC
Centered DAMC2
Centered DAMC3
.070
-1.710
1.705
.007
.017
.001
¹ Duration Activity of Major Contributors (After Centering)
² Duration Activity of Major Contributors Squared (After Centering)
³ Duration Activity of Major Contributors Cubed (After Centering)
*p<.05, **p<.01
ªSince the level of tolerance for cubic relationship is close to ‘0,’ significant cubic relationship will not be considered here.


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