Application of Fuzzy Expert System in Determination of MMPI-2 Protocol Code Type
Pavel Škobrtal, Iveta Bebčáková, Jana Talašová · Cognitive Remediation Journal · 2018
The MMPI-2 questionnaire is one of the key methods used for detection of significant personality features and mental disorders.It is a complex questionnaire and its interpretation includes two parts, quantitative and qualitative one.The crucial part of the quantitative interpretation is determination of a code type of the given protocol.In our article, we introduce a mathematical model for determination of protocol's code type, which, in addition to clinical scales, takes into consideration results of the other scales according to the original interpretation manual for MMPI-2.The model is based on a linguistically defined base of rules.By using the base of rules, the model is also able to detect prototypic protocols which correspond to the administered protocol the best.Application of Fuzzy Expert System in Determination of MMPI-2 Protocol Code Type MMPI-2 questionnaire (Minnesota Multiphasic Personality Inventory -2) belongs to the three most used psychodiagnostic methods in the world (Greene, 2002).The questionnaire serves for testing of personality features and mental disorders.It is especially used in clinical practice.The questionnaire was created on the base of revision of the original MMPI questionnaire which was published by S. Hathaway and J. C. McKinley in 1940(Butcher, Graham, Williams, 1990).The questionnaire consists of 567 questions in total.The original version contains 10 clinical scales Hypochondria (Hs), Depression (D), Conversion Hysteria (Hy), Psychopathic Deviation (Pd), Masculinity-Feminity (Mf), Paranoia (Pa), Psychasthenia (Pt), Schizophrenia (Sc), Hypomania (Ma), Social introversion (Si) and standard validity scales.If compared with that, the other scales were introduced later as for example Harris-Lingoes Subscales, Si Subscales, content scales, Wiener-Harmon Subscales, Personality Psychopathology Scales, Behavioural Dysfunction Scales and supplemental scales (Netí k, 2002).