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| TREATING
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Screening
and Assessment Instruments
By Dr. Ken C. Winters
Professor, Department of Psychiatry
Director,
Center for Adolescent Substance Abuse Research
University of Minnesota
I. Screening Instruments
Several adolescent
substance abuse screening tests are available. These tools are useful
because they can briefly estimate the severity of a youth's problem.
Given their preliminary nature, screening measures typically call
for conservative scoring decisions. For example, terms such as "probable
substance abuser" or "needs a comprehensive assessment"
are often used to describe an individual's test score. A screening
tool's full value is appreciated when it is used to determine whether
a more complete assessment should be conducted.
Adolescent
Alcohol Involvement Scales (AAIS)
The AAIS is a 14-item self-report (Mayer & Filstead, 1979) scale
that looks at the type of alcohol abuse and how often it occurs.
Questions on the AAIS address topics such as, the last drinking
episode, reasons for the initial drinking behavior, the situation
in which the drinking occurred, short and long-term effects of drinking,
the adolescent's perception about drinking, and the ways in which
others perceive his/her drinking. The severity of the adolescent's
alcohol abuse is determined by their overall score, which can range
anywhere between 0 and 79. The major scales include non-user/normal,
misuser, and abuser/dependent. The test scores are related to a
substance abuse diagnosis as well as ratings from other sources.
These other sources include independent clinical assessments and
the adolescent's parents, as well as the consistency for each individual-
ranging from .55 in a clinical sample to .76 in a general sample
(Moberg, 1983). The norms for both of these samples are available
in the 13-19 year-old range.
Adolescent
Drinking Index (ADI)
The ADI (Harrell & Wirtz, 1989) is a 24-item self-administered
test that examines adolescent drinking. It does so by measuring
psychological, physical, and social symptoms as well as loss of
control. This test is written at a fifth grade reading level. The
results of this test provide a single score as well as two subscale
scores. The subscale scores include, self-medicating drinking and
rebellious drinking. These two scales are intended as research scales.
The reliability of the ADI is good. Results are shown to be consistent
and accurate (coefficient alpha, .93-.95) in measuring the severity
of adolescent drinking problems. Studies show a moderate correlation
with alcohol consumption as well as significant differences between
groups with different levels of alcohol problem severity. In addition,
there was a hit rate of 82% in classification accuracy of the ADI
(Harrell & Wirtz, 1989). This means that 82% of the time, when
a drinking problem was identified using this scale, the test was
accurate in classifying the drinking as a problem and the test accurately
determined the level of severity of the drinking problem.
Adolescent
Drug Involvement Scale (ADIS)
Moberg and Hahn (1991) modified the AAIS (described above) to address
drug use problem severity. The ADIS is a 13-item questionnaire written
at an eighth grade reading level. This scale correlates (.72) with
drug use frequency and (.75) with independent rating by clinical
staff. When matched up with the frequency of drug use and the ratings
that clinical staff gave, the scale correlates with their findings,
therefore providing evidence of the validity of this test.
Client Substance
Index (CSI)
This 113-item test (Moore, 1983) is based on Jellinek's 28 symptoms
of drug dependence. Scores on the CSI reflect the degree of drug
dependence, ranging from no problem, to misuse of substances, to
chemical dependency. CSI scores have been shown to discriminate
normal from drug treatment samples (Moore, 1983).
Client Substance
Index-Short (CSI-S)
The CSI-S (Thomas, 1990) was developed and evaluated as part of
a larger Substance Abuse Screening Protocol through the National
Center for Juvenile Justice. This tool is a 15-item, yes/no self-report
instrument that was adapted from Moore's (1983) multi-scale Client
Substance Index. The objective of this brief screen is to identify
juveniles within the court system who are in need of additional
drug abuse assessment. When tested again and again, the results
are comparable (coefficient alpha =.84-.87). The test also has the
ability to discriminate groups defined according to the severity
of their criminal offense (Thomas, 1990).
Drug and
Alcohol Problem (DAP) Quick Screen
This 30-item screening questionnaire has a yes/no/uncertain response
format. The DAP was tested in a pediatric setting (Schwartz &
Wirtz, 1990), in which the authors report that about 15% of the
respondents said yes to 6 or more items. From this, they determine
the cut-off score for "problem" drug use to be inclusive
of 6 or more responses of yes to the items on the scale. The items
contribute to the score, however the validity and reliability of
this test are not available.
Drug Use
Screening Inventory-Revised (DUSI-R)
The DUSI-R is a 159-item instrument that documents the level of
involvement with a range of drugs. It also describes the severity
of consequences related to such involvement. The scale provides
scores on 10 problem density subscales. Some of these subscales
are: substance use, behavior problems, and psychiatric disorder.
In addition to these 10 subscales, there is one lie scale. This
is used for reliability purposes to ensure honesty in the respondents
or identify inconsistencies within the responses. Domain scores
were related to DSM-III-R substance use disorder criteria in a sample
of adolescent substance abusers (Tarter, Laird, Bukstein, &
Kaminer, 1992). An additional psychometric report provides norms
and evidence of scale sensitivity (Kirisci, Mezzich, & Tarter,
1995).
Personal
Experience Screening Questionnaire (PESQ)
The PESQ (Winters, 1992) is a brief 40-item screening instrument
that consists of a scale that measures the severity of the drinking
problem (coefficient alpha, .91-.95), drug use history, select psychosocial
problems, and response distortion tendencies ("faking good"
and "faking bad"). Norms for normal juvenile offender
and drug abusing populations are available. The test is estimated
to have an accuracy rate of 87% in predicting the need for further
drug abuse assessment (Winters, 1992).
Problem Oriented Screening Instrument for Teenagers (POSIT)
This 139-item self-administered yes/no instrument is part of the
Adolescent Assessment and Referral System developed by the National
Institute on Drug Abuse (Rahdert, 1991). It addresses 10 functional
adolescent problem areas: substance use, physical health, mental
health, family relations, peer relationships, educational status,
vocational status, social skills, leisure and recreation, and aggressive
behavior/delinquency. The need for further assessment has been determined
by cut scores that have been established rationally, or confirmed
with documented proof providing procedures (Latimer, Winters, &
Stinchfield, 1997). Convergent and discriminating data for the POSIT
have been reported by several investigators (Dembo, Schmeidler,
Borden, Chin Sue, & Manning, 1997; McLaney et al., 1994).
Rutgers Alcohol
Problem Index (RAPI)
The RAPI (White & Labouvie, 1989) is a 23-item questionnaire
that focuses on the consequences of alcohol use in regards to family
life, social relations, psychological functioning, delinquency,
physical problems and neuropsychological functioning. The RAPI,
when used as a screening device among heavy alcohol users, was found
to correlate highly with the DSM-III-R requirements for substance
use disorders (.75-.95) and when used on a large general population
sample, the RAPI was found to have high internal consistency (.92)
(White & Labouvie, 1989).
Substance
Abuse Subtle Screening Inventory (SASSI)
Miller's (1985) 81-item adolescent version of the SASSI shows scores
for several scales. Those scales are: face valid alcohol, face valid
other drug, obvious attributes, subtle attributes, and defensiveness.
The validity of this test is proven by its high correlation with
the MMPI cut scores for chemical dependency and the SASSI's high
correspondence with diagnosis of substance use disorder at intake
(Risberg, Stevens, & Graybill, 1995).
II. Comprehensive
Assessment Instruments
The field also consists of several comprehensive assessment
instruments. These measures provide a detailed assessment of the
multiple problems and strengths of the adolescent. Such information
is important in helping to determine if the adolescent has clinical-level
problems and to construct a treatment plan. Thre types of comprehensive
assessments are reviewed: interviews that include an assessment
of substance use disorders, interviews that primarily focus on psychosocial
functioning, and multi-scale questionnaires.
Substance Use Disorder Interviews
Adolescent
Diagnostic Interview (ADI)
The ADI (Winters & Henly, 1993) tests for symptoms associated
with psychoactive substance use disorders (descriptions can be found
in the DSM-III-R and DSM-IV). This instrument follows a structured
interview format and it also measures information related to demographics
as well as social class. It takes a look at the substance use consumption
history, and the way a person functions in society in relation to
mental health. Evidence for the interview's interrater agreement,
test-retest reliability, the test's relationships to alternative
measures of problem severity, and its agreement with independent
diagnoses have been reported (Winters & Henly, 1993; Winters,
Stinchfield, Fulkerson & Henly, 1993).
Customary
Drinking and Drug Use Record (CDDR)
The CDDR (Brown, Meyers, Lippke, Tapert, Stewart & Vik, 1998)
is a research-focused, structured interview that measures alcohol
and other drug use consumption for both recent (prior 3 months)
and lifetime periods. The interview tests DSM-III and DSM-IV substance
dependence symptoms (including a detailed assessment of withdrawal
symptoms) and several types of consequences of alcohol and other
drug involvement. Psychometric studies provide evidence that the
CDDR is reliable over time and across interviewers (average one-week
test-retest coefficients for all major content domains is .91),
discriminates community youths from substance-abusing youths, and
converges with alternate measures (Brown et al., 1998).
Substance
Use Disorders Diagnostic Schedule (SUDDS)
This instrument is a diagnostic checklist that is specific to DSM-III-R
criteria (Hoffmann & Harrison, 1989). It should be used cautiously
among adolescents. This is because several of the items are not
appropriate for young people's experiences and the content coverage
is pretty weak when it comes to school consequences and peer use
issues. The SUDDS is accompanied by other measures that assist in
determining the level of client treatment care based on client placement
criteria from the American Society of Addiction Medicine (Level
of Care Index, Mee-Lee & Hoffmann, 1992a and Recovery Attitude
and Treatment Evaluator, Mee-Lee & Hoffmann, 1992b). The SUDDS
current and lifetime ratings have been shown to be pretty even with
independent clinical diagnoses in an adult sample (overall agreement,
71%-100%) (Davis, Hoffmann, & Luehr, 1992), although there have
been no psychometric evaluations of the interview with adolescents.
Psychosocial Functioning Interviews
Adolescent
Drug Abuse Diagnosis (ADAD)
The ADAD is a 150-item structured interview that looks at the following
content areas: medical status, drug and alcohol use, legal status,
family background and problems, school/employment, social activities
and peer relations, and psychological status. The interviewer uses
a 10-point scale to rate the patient's need for additional treatment
in each content area. These severity ratings translate to a problem
severity dimension (no problem, slight, moderate, considerable,
and extreme problem). The drug use section includes a detailed drug
use list and how often the use occurs, and a brief set of items
that looks at specific areas of drug involvement (e.g., polydrug
use, attempts at abstinence, withdrawal symptoms, use in school).
Psychometric studies on the ADAD, using a broad sample of clinic-referred
adolescents, provide favorable evidence for its reliability and
validity (Frideman & Utada, 1989). A shorter form (83 items)
of the ADAD intended for treatment outcome evaluation is also available.
Adolescent
Problem Severity Index (APSI)
The APSI was developed by Metzger and colleagues (Metzger, Kushner,
& McLellan, 1991) of the University of Pennsylvania/VA Medical
Center. The APSI provides a general information section that addresses
the reason for the assessment and the referral source, as well as
the adolescent's understanding of the reason for the interview.
Additional sections of the APSI include drug/alcohol use, family
relationships, education/work, legal, medical, psycho/social adjustment,
and personal relationships. Some concurrent validity for the alcohol/drug
section has been empirically demonstrated (Metzger et al., 1991)
and predictive validity evaluations are underway.
Comprehensive
Addiction Severity Index for Adolescents (CASI-A)
The CASI-A is a structured interview developed by Meyers (1991).
It covers several areas, including the following: education, substance
use, use of free time, leisure activities, peer relationships, family
(including family history and intrafamilial abuse), psychiatric
status, and legal history. At the end of many major topics, there
is space provided for the interviewer's comments, severity ratings,
and ratings of the quality of the interviewee's answers. An interesting
feature of this interview is that it incorporates results from a
urine drug screen and observations from the interviewer. Psychometric
studies on the CASI-A are being conducted by the author.
Teen Severity Index (T-ASI)
Another adolescent version of the ASI was adapted by Kaminer, Bukstein
& Tarter (1991). The T-ASI consists of seven content areas:
chemical use, school status, employment-support status, family relationships,
legal status, peer-social relationships, and psychiatric status.
A medical status section was not included because it was thought
to be less relevant to adolescent drug abusers. Patient and interviewer
severity ratings are rated on a 5-point scale for each of the content
areas. Preliminary data indicate adequate interrater agreement and
initial validity data (Kaminer, Wagner, Plummer, & Seifer, 1993).
Multi-Scale Questionnaires
Adolescent
Chemical Health Inventory (ACHI)
The ACHI (Renovek, 1988) consists of 128 items that address use
problem severity and several psychosocial factors. Some of the psychosocial
scales measure family closeness, depression, alienation, family
support, family chemical use and physical and sexual abuse. The
ACHI additionally screens for defensiveness. The test is self-administered
through use of a personal computer. Validity data collected for
the ACHI indicate that the instrument is able to differentiate between
adolescent drug abusers and non-abusers.
Adolescent
Self-Assessment Profile (ASAP)
This self-administered, 225-item, multi-scale inventory (Wanberg,
1992) was developed on the basis of many variable research studies
by Wanberg and colleagues. The instrument provides an in-depth assessment
of drug involvement, including how often drug use occurs, the consequences
and benefits of drug use, as well as the major risk factors associated
with such involvement (e.g., deviance, peer influence). Supplemental
scales, which are based on common factors found within the specific
psychosocial and problem severity domains, can be scored as well.
Extensive reliability and validity data based on several "normal"
groups are provided in the manual.
Chemical
Dependency Assessment Profile (CDAP)
This 232-item self-report questionnaire assess 11 dimensions of
drug use, including expectations of use (e.g., drugs reduce tension),
physiological symptoms, the amount used and how often the use occurs,
and attitude toward treatment. A computer-generated report is provided.
Limited normative data are available thus far on only 86 subjects
(Harrell, Honaker & Davis, 1991).
Hilson Adolescent
Profile (HAP)
The HAP consists of 310 true-false items that cover 16 scales, two
of which measure alcohol and drug use. The other content scales
correspond to characteristics found in psychiatric diagnostic categories
(e.g., antisocial behavior, depression) and psychosocial problems
(e.g., home life conflicts). Normative data have been collected
from clinical patients, juvenile offenders, and normal adolescents
(Inwald, Brobst, & Morissey, 1986).
Juvenile
Automated Substance Abuse Evaluation (JASAE)
The JASAE (ADE Inc. 1987) is a computer-assisted, 108-item (T/F)
instrument that is based on a similar adult measure, the SALCE.
The JASAE produces a 5 category score, ranging from no use to drug
abuse (including a suggested DSM-IV classification), accompanied
by a summary of drug use history. The instrument also includes a
measure of life stress and a scale for test-taking attitude. The
JASAE has been shown to discriminate clinical groups from nonclinical
groups.
Personal
Experience Inventory (PEI)
The PEI is a 276-item, multi-scale questionnaire that measures chemical
involvement problem severity (10 scales), psychosocial risk (or
protective) factors (12 scales), and the tendency for subjects to
distort responses (5 scales). Supplemental problem screens measure
eating disorders, suicide potential, physical/sexual abuse, and
parental history of drug abuse. The scoring program provides a computerized
report that includes narratives and standardized scores for each
scale, as well as other clinical information. Extensive normative
and psychometric data (including test-re-test reliability and convergent
and predictive validity) are available (Winters & Henly, 1989;
Winters, Stinchfiled & Henly, 1996).
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