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The Lees-Haley Fake Bad Scale (FBS) or MMPI Symptom Validity Scale is a set of 43 items in the Minnesota Multiphasic Personality Inventory (MMPI), selected by Paul R. Lees-Haley in 1991 to detect malingering for the forensic evaluation of personal injury claimants. [1]
The original MMPI was developed on a scale-by-scale basis in the late 1930s and early 1940s. [16] Hathaway and McKinley used an empirical [criterion] keying approach, with clinical scales derived by selecting items that were endorsed by patients known to have been diagnosed with certain pathologies.
Publications on the MMPI-2-RC Scales include book chapters, multiple published articles in peer-reviewed journals, and address the use of the scales in a wide range of settings. [2] The MMPI-2-RF scales rest on an assumption that psychopathology is a homogeneous condition that is additive. [3]
These versions were evaluated using several criteria, such as internal consistency of the scales (or how much the items in one scale correlate with each other). The ability to fake good or bad while taking the test was also evaluated using a sample of college students that were given different instructions on how to answer the test. [3]
A self-report inventory is a type of psychological test in which a person fills out a survey or questionnaire with or without the help of an investigator. [1] Self-report inventories often ask direct questions about personal interests, values, symptoms, behaviors, and traits or personality types.
Edwards subsequently developed the first Social Desirability Scale, a set of 39, true-false questions extracted from the Minnesota Multiphasic Personality Inventory (MMPI), questions that judges could, with high agreement, order according to their social desirability. [4]
Fake Botox is behind 19 reports of vision problems and difficulty breathing and swallowing in at least nine states, the Food and Drug Administration said Tuesday. Fake Botox is the cause of bad ...
With graduate student Paul Meehl, Hathaway developed three validity scales embedded within the MMPI: the L, or lie, scale indicates when a client is "faking good"; the F, or infrequency, scale indicates when a client is "faking bad"; the K, defensiveness scale identifies individuals in denial about their behaviors and symptoms.