Questionnaire Dwelling Unit-Level and Person Pair-Level Sampling ...

Table C.1a 2006 QDU Weight GEM Modeling Summary (Model Group 1: Northeast)
Extreme Weight Proportions Bounds 4
Modeling Step 1 % Unweighted % Weighted % Outwinsor UWE 2 # Covariates 3 Nominal Realized
sel.qdu.ps
2.34 1.59 0.24 2.562 243 (0.54, 2.80) (0.56, 2.80)
2.07 2.86 0.64 2.563 240 (0.32, 4.27) (0.32, 4.20)
(0.95, 2.02) (0.95, 2.02)
res.qdu.nr
2.09 3.21 0.75 2.654 243 (1.00, 2.85) (1.00, 2.85)
1.77 3.20 0.57 2.953 238 (1.00, 3.07) (1.00, 3.07)
(1.05, 1.46) (1.05, 1.42)
res.qdu.ps
1.77 3.20 0.57 2.953 243 (0.75, 2.90) (0.84, 2.90)
1.99 3.20 0.43 2.947 243 (0.20, 3.80) (0.20, 3.80)
C-15
(0.95, 1.30) (0.95, 1.30)
GEM = generalized exponential model; QDU = questionnaire dwelling unit.
1
For a key to modeling abbreviations, see Chapter 7, Exhibit 7.1.
2
Unequal weighting effect (UWE) defined as 1 + [(n - 1)/n]*CV 2 , where CV = coefficient of variation of weights.
3
Number of proposed covariates on top line and number finalized after modeling.
4
There are six sets of bounds for each modeling step. Nominal bounds are used in defining maximum/minimum values for the GEM adjustment factors. The realized bound is the
actual adjustment produced by the modeling. The set of three bounds listed for each step correspond to the high extreme values, the nonextreme values, and the low extreme
values.