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. Author manuscript; available in PMC: 2014 Jul 22.
Published in final edited form as: Med Decis Making. 2013 Jul 3;34(1):107–115. doi: 10.1177/0272989X13493144

Table 4.

Multivariate logistic models: marginal effects Dependent variable = 1 if correct response

(1) (2) (3)
Main effects of domain:
 Financial domain −0.032 (0.020)
p = 0.121
- -
 Health domain −0.161 (0.023)
p = 0.000
- -

Main effects of item:
 Item = 2 −0.253 (0.022)
p = 0.000
−0.299 (0.034)
p = 0.000
−0.336 (0.037)
p = 0.000
 Item = 3 0.209 (0.020)
p = 0.000
0.207 (0.030)
p = 0.000
0.233 (0.048)
p = 0.000
 Item = 4 0.035 (0.022)
p = 0.112
−0.006 (0.035)
p = 0.857
−0.006 (0.039)
p = 0.874

Core numeracy 0.126 (0.011)
p = 0.000
0.128 (0.011)
p = 0.000
0.070 (0.012)
p = 0.000

Domain effects, fully interacted with item:
 Financial domain × item 1 - −0.006 (0.043)
p = 0.888
−0.007 (0.047)
p = 0.872
 Financial domain × item 2 - 0.087 (0.045)
p = 0.050
0.097 (0.046)
p = 0.037
 Financial domain × item 3 - −0.095 (0.045)
p = 0.037
−0.122 (0.057)
p = 0.033
 Financial domain × item 4 - −0.144 (0.045)
p = 0.001
−0.148 (0.051)
p = 0.004
 Health domain × item 1 - −0.164 (0.044)
p = 0.000
−0.180 (0.047)
p = 0.000
 Health domain × item 2 - −0.173 (0.045)
p = 0.000
−0.160 (0.080)
p = 0.045
 Health domain × item 3 - −0.276 (0.052)
p = 0.000
−0.326 (0.082)
p = 0.000
 Health domain × item 4 - 0.014 (0.050)
p = 0.784
0.025 (0.055)
p = 0.649

Additional covariates:
 Female - - −0.136 (0.025)
p = 0.000
 Composite cognitive score - - 0.081 (0.013)
p = 0.000
 Age - - −0.006 (0.001)
p = 0.000
 Education = High school - - 0.094 (0.030)
p = 0.002
 Education = Some college - - 0.113 (0.035)
p = 0.001
 Education = College or more - - 0.265 (0.040)
p = 0.000
 Race = Black non-Hispanic - - −0.164 (0.036)
p = 0.000
 Race = Other non-Hispanic - - 0.083 (0.105)
p = 0.320
 Hispanic - - −0.115 (0.051)
p = 0.026
 Health is fair or poor - - −0.050 (0.027)
p = 0.066

Wald χ2 350.50 360.24 438.29

Sample n (individuals) 962 962 962
Sample n (observations) 3,848 3,848 3,848

Notes:

Means are weighted using analysis weights.

Results are presented as: marginal effect (standard error)

p-value associated with H0: marginal effect= 0