Substance Abuse Subtle Screening Inventory (SASSI)
Substance Abuse Subtle Screening Inventory · Also known as: SASSI
The SASSI is a comprehensive self-report inventory designed to identify substance abuse and dependence through both direct and indirect assessment methods. Developed by Glenn Miller in 1997 and updated to the SASSI-3 format, it employs 'subtle' items that indirectly measure substance abuse risk without openly asking about drug or alcohol use, thereby reducing response bias and improving detection in individuals who may be motivated to minimize their substance use. The SASSI is widely used in clinical, occupational health, and criminal justice settings.
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When to use it
The SASSI is appropriate for use in occupational health screening (particularly in safety-sensitive industries), criminal justice and correctional settings, clinical addiction treatment programs, and employee assistance programs. It is useful when there is suspicion of substance abuse but the individual is motivated to conceal or minimize use. The SASSI is less suitable as a population-based screening tool or in settings where respondents are highly motivated to be truthful (e.g., voluntary treatment seekers at intake).
Strengths & limitations
- Comprehensive assessment combining direct and indirect (subtle) items to reduce response bias and detect individuals motivated to minimize substance use
- Includes defensiveness assessment to evaluate the credibility and interpretation of results
- Validated across diverse populations including clinical, occupational, and criminal justice samples
- Proprietary algorithm reduces subjective interpretation by combining multiple subscales into standardized classifications
- Addresses multiple substance abuse indicators including consequences, psychological traits, and behavioral patterns
- Longer administration time (15–20 minutes) compared to brief screening instruments, which may limit feasibility in some settings
- The 'subtle' items that define the instrument's unique approach have been criticized as lacking transparent theoretical justification
- Proprietary scoring algorithm is not fully transparent and requires access to scoring software or manual
- Some research questions the incremental validity of subtle items over obvious items alone in predicting substance abuse
- Depends on self-report and may still be subject to response bias despite subtle items
Frequently asked
How does SASSI differ from other substance abuse screening instruments like AUDIT or DUDIT?
AUDIT and DUDIT focus on direct questions about substance quantity and consequences. SASSI employs both direct and indirect 'subtle' items to detect substance abuse even when individuals are motivated to minimize. SASSI also assesses defensiveness, whereas AUDIT/DUDIT do not. SASSI is longer and more comprehensive.
What does a 'Possible Substance Abuser' classification mean?
A 'Possible' classification indicates some evidence of substance abuse risk based on the inventory, but not sufficient for a definitive 'Probable' or 'Likely' classification. This classification warrants clinical interview and further evaluation, but does not automatically indicate substance abuse disorder.
What if someone scores high on defensiveness?
High defensiveness may indicate the individual is minimizing or denying problems, or may reflect a general personality trait of social desirability. High defensiveness should prompt clinician caution about accepting the classification at face value; additional clinical assessment, collateral information, or re-assessment may be warranted.
Can SASSI be used for diagnosis of substance use disorder?
SASSI provides probability classifications indicating likelihood of substance abuse, but is not diagnostic. Diagnosis requires DSM-5 criteria evaluation and comprehensive clinical assessment by a qualified professional. SASSI is a screening/assessment tool, not a diagnostic instrument.
Is SASSI suitable for adolescents?
The SASSI was primarily developed for adults. Adaptations for adolescents (SASSI-A) exist but require separate validation and interpretation norms. If screening adolescents, use age-appropriate versions and supplement with clinical interview.
How often should SASSI be readministered?
SASSI is typically administered once at intake for classification purposes. Readministration during treatment may assess progress, though it is not designed as a progress monitoring tool. Use BAM or other outcome monitoring instruments for frequent progress assessment.
Sources
- Miller, G. A. (1997). The Substance Abuse Subtle Screening Inventory-2 (SASSI-2) manual. Spencer, IN: Spencer Psychology Press. link ↗
- Lazowski, L. E., Miller, F. G., Boye, M. W., & Miller, G. A. (2010). A comparison of the Substance Abuse Subtle Screening Inventory-3 (SASSI-3) to the SASSI-2 in a large correctional sample. Addictive Behaviors, 35(4), 333–340. link ↗
How to cite this page
ScholarGate. (2026, June 3). Substance Abuse Subtle Screening Inventory. ScholarGate. https://scholargate.app/en/addiction-medicine/substance-abuse-subtle-screening
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