Published on: **Mar 4, 2016**

- 1. THE MMPI-2Certification Training MARCO GIANNINI 21-22 JANUARY, 2012 SOFIA,
- 2. CONSTRUCTION OF THE MMPI In the early 1930s at the University Hospital in Minneapolis, Minnesota (US), Starke Hathaway and J.C. McKinley, under the banner of empiricims, waged new battle for the scientific advancement of personality assessment. They sought to develop a multifaceted or multiphasic personality inventory now known as the Minnesota Multiphasic Perspnality Inventory (MMPI). Instead of using independent sets of test, Hathaway and McKinley included in a single inventory a wide sampling of behavior of significance to psychologist
- 3. CONSTRUCTION OF THE MMPI Hathaway and McKinley assembled more than 1,000 items from psychiatric textbooks, other personality inventories and clinical experience. After deleting duplicate and insignificant items they arrived at a sample of 504 items (1940). Next constructed a series of quantitative scales that could be used to diagnose abnormal behavior. The items had to be anwered differently by the criterion group (e.g. Hypochondriacal patients) as compared with normal groups. Items were selected solely because the criterion group answered them differently than other groups. 550 items the final version.
- 4. MMPI-2 The MMPI-2 (Butcher et al, 1989) represent the restandardization of the MMPI that marks the advent of a new era of clinical usage and research of this inventory Restandardization of the MMPI was needed to provide current norms for the inventory and update item content when needed. 567 items Cut off 65 T score (MMPI-2) instead of 70 T score (MMPI)
- 5. BASIC STATISTICS FOR THE MMPI-2 A raw score is an original datum that has not been transformed. This may include, for example, the original result obtained by a patient on a test (i.e., the number of items endorsed). A z-score instead tells how many standard deviations someone is above or below the mean in a standardized normal distribution (Mean=0 SD=1). A z-score of -1.4 indicates that someone is 1.4 standard deviations below the mean. To calculate a z-score, subtract the mean (of the normative sample) from the raw score and divide that answer by the standard deviation. (i.e., raw score =15, mean = 10, standard deviation = 4. Therefore 15 minus 10 equals 5. 5 divided by 4 equals 1.25. Thus the z-score is 1.25.) Since MMPI-2 Scales give results in T-Scores (M of 50; SD of 10) to convert a z-score to a T-score, multiple the z-score by 10 and add 50 to your answers (i.e., z-score = .5. .5 times 10 equal 5. 5 plus 50 equals 55. Therefore, a z-score of .5 converts to a T-score of 55.
- 6. BASIC STATISTICS FOR THE MMPI-2 Classical test theory assumes that each person has a true score that would be obtained if there were no errors in measurement. Because instruments used for measurement are imperfect, the score that is observed for each person most times is different from the persons true abilities or characteristics. The theory concludes that the difference between the true score and the observed score is the result of errors in measurement.
- 7. BASIC STATISTICS FOR THE MMPI-2
- 8. ADMINISTRATION Administering and scoring the MMPI-2 is a procedure that can be handled by a competent clinicians with good level in psychometrics The ease of MMPI-2 administration does not absolve the clinician of the responsability for insuring that is handled properly. Before administering the inventory for the first time, the clinician should read carefully the MMPI-2 Manual
- 9. ADMINISTRATION Give the booklet to the client ( >=18 yeas old) and read the instructions to him/her. Reading level is a crucial factor in determining whether or not a person can complete the MMPI-2 (eight years of formal education is required); If the protocol is to be computer scored, be sure the client completely fills in the dots; not so much of a consideration if you are hand-scoring;
- 10. ADMINISTRATION Client doesn’t have to complete the MMPI in 1 setting but it’s better; however he/she/they can take their time to complete it; It can be given in a group or individual format; Items can be read or delivered via tape recorder; If the client cannot decide whether an item is true or false, tell him/her to choose what it is. if they persist, tell them to decide what it is 51% true or false.
- 11. ADMINISTRATION Average completion time? Look at behavior during testing!
- 12. CLINICAL SCALES SCALE 1: HYPOCHONDRIASIS (HS) SCALE 2: DEPRESSION (D) SCALE 3: HYSTERIA (HY) SCALE 4: PSYCHOPATHIC DEVIATE (PD) SCALE 5: MASCULINITY-FEMININITY (MF) SCALE 6: PARANOIA (PA) SCALE 7: PSYCHASTHENIA (PT) SCALE 8: SCHIZOPHRENIA (SC) SCALE 9: HYPOMANIA (MA) SCALE 0: SOCIAL INTROVERSION (SI)