Purpose: Screen for malingered psychiatric illness
Age: 18+ years
Time: 5-10 minutes
The Miller Forensic Assessment of Symptoms Test (M-FAST) is a 25-item screening interview for adults that helps assess the likelihood that an individual is feigning psychiatric illness.
The seven M-FAST scales operationalise response styles and interview strategies that have been demonstrated to successfully identify individuals who are attempting to feign psychology:
- Reported vs Observed Symptoms (RO)
- Extreme Symptomatology (ES)
- Rare Combinations (RC)
- Unusual Hallucinations (UH)
- Unusual Symptom Course (USC)
- Negative Image (NI)
- Suggestibility (ES)
The flexibility of the structured interview format allows you to determine when, where, and to whom the M-FAST should be administered.
Interpretive information is provided at three distinct levels:
- The total score provides an estimate of the likelihood that the respondent is malingering psychopathology
- Scale scores provide information about the nature of the individual’s response styles that can help to explain how he or she is attempting to malinger mental illness
- Several scales consistently differentiate malingerers from honest responders
When results indicate a probability of feigning, a more comprehensive assessment instrument (e.g., the Structured Interview of Reported Symptoms - Second Edition - SIRS) can be administered to obtain more detailed and definitive information.
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- Postgraduate studies in Psychology or Medicine
Examples of specialists: Psychiatrists, Paediatricians, Psychologists