F SCALE T<50
BACK INFREQUENCY (Fb) SCALE
PSYCHOPATHOLOGY INFREQUENCY SCALE (Fp)
-Assessment of extreme responding relative to psychiatric inpatients.
F scale is infrequent responding relative ro normative sample.
-Assesses the extent to which a person is claiming more symptoms than people in an inpatient psychiatric facility.
LIE SCALE (L)
-Claims of being excessively virtuous, extreme high moral character.
L>65 T
K SCALE
K SCALE HIGH SCORES
T>65
K SCALE
56-65
K SCALE
40-55
- Well adjusted and few signs of emotional disturbance
K SCALE LOW SCORES
<40 T
Minnesota Multiphasic Personality Inventory MMPI 2
REASONS FOR THE FAILURE TO ACHIEVE ORIGINAL PURPOSE (MMPI)
LINEAR T SCORES
All scales were assigned a mean of 50 and a std of 10
-Problem: non equivalency of percentile values across scales
UNIFORM T SCORES
T score of 65 falls uniformly at the 92nd percentile for the eight clinical scales and content scales
USE OF MMPI 2 NORMS WILL RESULT IN HIGHER T SCORES.
N
COMMON PLOTTING ERRORS
WELSCH CODE
Most common coding system.
-Numbers are sequenced according to their elevation level.
VALIDITY OF MMPI2 PROFILES
IN CLINICAL INTERPRETATION
ITEM OMISSIONS, INCONSISTENT RESPONDING, AND FIXED RESPONDING
Examine indices that reflect a test taking approach sometimes taken by uncooperative clients.
CANNOT SAY SCORE (?)
VARIABLE RESPONSE INCONSISTENCY (VRIN)
-Can revel inconsistent responding Reasons---- .random responding .confusion .reading problems
TRUE RESPONSE INCONSISTENCY (TRIN)
ALL TRUE AND ALL FALSE PATTERNS
-Another sign of invalidity is the percentage of True and False responses in the record
-A low percentage of either true or false responses (<20%) reflects a distorted response pattern
Reasons—-
.conscious manipulation
.careless responding to the items
PROFILE IS UNINTERPRETABLE
ALL TRUE RESPONSE PATTERN
Yields extreme elevations on scales 6,7,8,9 (measure severe pathology.)
-Validity scales- very high F at a level profile is uninterpretable L and K are very low