The Disproportionate Overrepresentation of Minority Youth in ...

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Table 1-continued.
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Statistical Procedures
Procedure
Purpose
ANALYSIS OF VARIANCE To examine mean differences in variables
(ANOVA)
by county.
ZERO-ORDER CORRELATIONS To examine associations among two
variables (bivariate comparisons).
LOGISTIC REGRESSION
To make probability estimates of the
influence of race controlling for other
variables in the model for each stage in the
proceedings. Outcomes are categorical
dependent variables.
INTERACTION TERMS
To assess the possibility that the effect of
race may be conditioned by other variables.
Only reported when the chi square fit of the
model is improved over the additive model.
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a. This is an estimation. Minority youth other than black may be included in this figure.
The number is unknown, but it is believed to represent a small percentage in comparison
to whites given the small number of other nonwhite groups (including Hispanic) in Black
Hawk County.
b. A small number of files could not be located (N=77).
c. All referrals involving delinquencies were not identified due to missing and/or
destroyed records. Estimations are that 5,000 to 7,000 files were not found.
d. The small total was the result of an active policy which calls for their right to have files
sealed two years after the closure of the case.