Encyclopedia of Psychology and Law

(lily) #1
Evaluations of structural reliability have reported
Cronbach’s alpha averaging about .75 to .80, and
evaluations of short-term test-retest reliability have
reported correlations averaging about .90. Given that
the DA is an actuarial test of violence risk, these find-
ings are actually somewhat disappointing: First, they
indicate that the risk factors included in the test are at
least moderately correlated, which suggests that they
are likely to be substantially redundant as predictors
of intimate partner violence. Second, they indicate
that the DA is apparently insensitive to short-term
changes or fluctuations in violence risk.
Little or no information is available concerning the
interrater reliability of the DA—that is, agreement
between victims and evaluators or agreement among
evaluators with respect to the item or total scores.
There have been no studies evaluating the psycho-
metric properties of the DA within the framework of
modern test theory.

Validity
Some support for the validity of the DA comes from
retrospective studies that found a significant associa-
tion between total scores and measures of the serious-
ness of past intimate partner violence. Some research
has attempted to determine whether the DA can dis-
criminate between victims of lethal (or life threaten-
ing) versus nonlethal intimate partner violence, with
disappointing results; but this may be because the DA
must be scored on the basis of information provided
by collateral informants (e.g., relatives, friends) when
victims are deceased, possibly resulting in decreased
validity of test scores.
There is also some research supporting the predic-
tive validity of the DA with respect to intimate partner
violence. First, indirect evidence comes from studies
that found moderate to high correlations, typically
between .55 and .75, between DA total scores and
scores on other measures related to risk of intimate
partner violence, such as the Conflict Tactics Scale
and the Index of Spouse Abuse. Second, direct evi-
dence comes from prospective studies that have found
a moderate association between DA total scores and
repeated intimate partner violence. Although there
have been few direct comparisons, the predictive
validity of the DA appears to be about the same as that
of other procedures for assessing risk of intimate part-
ner violence. To date, there has been no investigation
of the predictive validity of the DA specifically with

respect to life-threatening violence, the purpose for
which it was originally developed.

Recommendations
The DA can be useful as part of a comprehensive
assessment of risk of intimate partner violence. It has
two important strengths: It systematically gathers infor-
mation from victims, who can provide a unique per-
spective on the history of violence in the relationship
and on the perpetrator’s background and psychosocial
adjustment, and it considers victim vulnerability factors
that are relevant to safety planning.
The DA also has some important limitations. There
is no formal manual to guide proper administration,
scoring, and interpretation or that provides the techni-
cal information necessary to undertake a comprehen-
sive review of the test. There is a lack of information
concerning the interrater reliability of DA item and
total scores. There is a lack of systematic research on
the predictive validity of the DA with respect to inti-
mate partner violence in general and no research with
respect to life-threatening intimate partner violence.
At the present time, then, it may be best to use the DA
as structured professional guidelines for risk assess-
ment rather than as a quantitative or actuarial test.

Stephen D. Hart and Kelly A. Watt

See alsoDomestic Violence Screening Instrument (DVSI);
Intimate Partner Violence; Spousal Assault Risk
Assessment (SARA); Violence Risk Assessment

Further Readings
Campbell, J. C. (1995). Assessing dangerousness.Thousand
Oaks, CA: Sage.
Campbell, J. C., Webster, D., Koziol-McLain, J., Block, C.,
Campbell, D., Curry, M., et al. (2003). Risk factors for
femicide in abusive relationships: Results from a multisite
case control study. American Journal of Public Health,
93,1089–1097.

DEATHPENALTY


Most countries have abolished the death penalty. The
United States retains the death penalty, although it has
attempted to make executions more humane. The

186 ———Death Penalty

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