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. Author manuscript; available in PMC: 2007 Mar 2.
Published in final edited form as: Med Care. 2006 Nov;44(11 Suppl 3):S78–S94. doi: 10.1097/01.mlr.0000245454.12228.8f

TABLE 3.

Comparison of Observed Means and Variances

Observed Means
Observed Variances
Items Equality Constraints Black White Δ,P Black White Ratio (F’),P
1. Bothered Strict: λ,τ,θ 0.351 0.328 0.023, 0.64 0.496 0.498 1.00, 0.98
11. Restless Strict: λ,τ,θ 0.589 0.612 −0.012, 0.70 0.874 0.823 1.06, 0.50
20. Get going Strict: λ,τ,θ 0.456 0.437 0.019, 0.73 0.662 0.631 1.05, 0.59
2. Appetite Strong: λ,τ 0.347 0.240 0.107, <0.02 0.576 0.427 1.35, <0.001
7. Effort Metric: λ 0.807 0.486 0.321, <0.001 1.290 0.765 1.69, <0.001
Composites*
5-item At least metric 2.55 2.10 0.445, <0.01 7.99 7.18 1.11, 0.25
4-item At least strong 1.74 1.62 0.124, 0.38 4.65 4.47 1.04, 0.68
3-item Strict 1.40 1.38 0.017, 0.88 3.22 3.13 1.03, 0.75
*

Five-item, sum of all 5 metric invariant items; 4-item, sum of the strong factorial invariant items (1, 2, 11, 20); 3-item, sum of the strict factorial invariant items (1, 11, and 20).