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PubMed1987

MMPI response-set characteristics among adolescents.

This study examined the Minnesota Multiphasic Personality Inventory (MPPI) profile characteristics for five different response sets in adolescent populations employing adolescent MMPI norms. In general, findings for "all-true" and "all-false" adolescent profiles were highly similar in shape and elevation to those reported in the adult literature (Graham, 1977; Lachar, 1974), whereas random profiles on adolescent norms differed substantially from adult-norm random profiles in shape but not elevation. The characteristics of "fake good" or "fake bad" response sets were investigated by the use of adolescent subjects in two settings. Ninety-four public high-school students were administered the MMPI with standard and "fake bad" instructions, and 24 adolescents in inpatient psychiatric treatment were administered the MMPI under standard and "fake good" instructions. The MMPI profiles generated by special instructional sets were analyzed in relation to the subject's age, sex, race, and actual MMPI profile features. Findings indicated that although sex and race effects were evident in normal adolescents' attempts to simulate psychopathology on the MMPI, teenagers generally produce profiles containing grossly exaggerated symptom patterns that are relatively easy to detect as invalid. In contrast, it was found that a substantial number of psychiatrically disturbed adolescents may effectively simulate normal profiles and that effectiveness in these attempts was related to greater age and lower actual MMPI T-score values on the Hs and Hy scales.

Adolescent↗
PubMed1989

Utility of the MMPI in a geriatric population.

Despite the popularity of the Minnesota Multiphasic Personality Inventory (MMPI), there exists a relative dearth of normative and validity research regarding its use with persons over the age of 60. Our investigation was designed to examine the MMPI performance of both a normal and a clinical sample of older men and women. Specifically, a nonpatient community sample of 204 subjects and an outpatient psychiatric sample of 30 subjects, between the ages of 60 and 90, were administered the MMPI as well as structured psychiatric interview, the Psychiatric Status Schedule (PSS). Results revealed that, on most of the MMPI scales, the mean scores were well above the norms (i.e., 5-10 t-score points). Through comparisons between the clinical and community subjects as well as between MMPI and PSS performance, the MMPI demonstrated substantial discriminative and concurrent criterion validity within this geriatric sample. The results of the study suggest that, with a few important exceptions, the MMPI, as generally utilized, is valid for use in the geriatric population.

Aged↗
PubMed1991

Couples in marital distress: a study of personality factors as measured by the MMPI-2.

This study examines the relationship between Minnesota Multiphasic Personality Inventory-2 (MMPI-2) measured personality characteristics and marital distress and provides empirical validation for using the MMPI-2 with a marital therapy population. Studied were 150 couples in marital therapy and 841 normal couples who participated in the MMPI-2 restandardization study. The MMPI-2, a biographical form, a partner rating form, and the Dyadic Adjustment Scale (DAS) were administered to all couples. The marital counseling group resembled previous marital counseling samples studied with the MMPI and scored significantly higher than the normative sample on several MMPI-2 scales. Relationships between the DAS and MMPI-2 clinical and content scale scores are reported. The Psychopathic Deviate (Pd) clinical scale and Family Problems (FAM) content scale were the most powerful group discriminators and strongest correlates of the DAS; their use as indices of marital distress is tested. The meaning of Pd as an index in assessing personality factors in marital distress is explored.

Adaptation, Psychological↗
PubMed1991

MMPI-2 profiles of women at risk for child abuse.

This study addresses the utility of the MMPI-2 in assessing personality characteristics of women who have a high potential for abusing their children. A sample of 154 women was identified on the basis of demographic characteristics as high risk for child abuse and other care-taking problems. They were evaluated (with the MMPI-2-AX form) during their pregnancy and are being followed up as part of the evaluation of a prevention/intervention program. This preliminary study compares the MMPI-2 personality characteristics of 146 of these women with several control samples: 1,462 women from the MMPI restandardization sample, 466 low education women from the restandardization sample, 84 pregnant women from the restandardization sample, and 167 women military recruits who are about the same age as the experimental group. The results show that, on the MMPI-2 clinical scales, women from the high-risk sample closely resemble child-abusing parents described in the previous MMPI literature. Moreover, these women differed significantly from all of the comparison groups on a number of MMPI-2 clinical and content scales. The clinical implications of these differences are discussed.

Adaptation, Psychological↗
PubMed1996

An MMPI-2 portrait of narcissism.

This study developed a Minnesota Multiphasic Personality Inventory-2 (MMPI-2) portrait of narcissism using the Narcissistic Personality Inventory and 5 narcissism scales derived from the MMPI-2 with a nonclinical sample of 283 subjects. Correlational analyses revealed a divergent pattern of relationships among the 16 narcissism measures and MMPI-2 scales, with 1 set of narcissism scales correlating positively with MMPI-2 mania (Ma) and a second set correlating positively with MMPI-2 depression (D), psychasthenia (Pt), feelings of inferiority (Sc), social introversion (Si), and other measures of distress. A principal-components analysis of the 6 narcissism scales produced 2 orthogonal factors, 1 suggesting Grandiosity and the other Depletion. High scorers on the Grandiosity factor were equally well characterized by a 98/89 or 96/69 MMPI-2 profile with an average F, whereas high scorers on the Depletion factor were best represented by an 87/78 profile with an elevated F. Profile analyses of high scorers on the narcissism scales indicated that a 98/89 MMPI-2 profile with an elevated F score is the best overall representation of the narcissistic personality in nonclinical samples. Results supported 3 alternative interpretations, including a narcissistic continuum, narcissism as a pathological defense against depression and rage, and 2 forms of narcissism, 1 grandiose and overt and the other depleted and covert.

Adolescent↗
PubMed1998

Effects of two MMPI-2 validity scales on basic scale relations to external criteria.

Many clinicians have come to rely on the broad array of validity scales available on the MMPI and the MMPI-2. In this study, we evaluated the utility of 2 MMPI-2 validity scales, the K scale and VRIN scale, in a sample of 692 psychiatric inpatients. Specifically, the effects of the K-correction procedure and the exclusion of protocols based on VRIN scale elevations were examined on the relation between MMPI-2 basic clinical scales and external criteria including both self-report and clinician ratings of psychopathology. Results indicated that the K-correction procedure commonly used with the MMPI and MMPI-2 did not result in higher correlations with external criteria in comparison to non-K-corrected scores. In contrast, MMPI-2 protocols that produced VRIN T-score values > or = 80 generally produced lower correlations with patients self-reports and clinician ratings of psychopathology in comparison to protocols judged to be valid based on VRIN scale results.

Adult↗
PubMed1998

Preliminary validation of the MMPI-A for a male delinquent sample: an investigation of clinical correlates and discriminant validity.

Adolescent psychopathology, until recently, has been a largely neglected area of research and poses unique challenges for psychological assessments. In response to the specific need for adolescent-focused measures, the MMPI-A (Butcher et al., 1992) was among several measures to be developed. Although a sizeable literature exists on the original MMPI (Hathaway & McKinley, 1943) and adolescent populations, relatively few empirical studies have been published on the MMPI-A. The primary purpose of this study was the examination of clinical correlates for the MMPI-A for a male delinquent sample. MMPI-A protocols were collected from 99 adolescents at a North Texas juvenile correctional facility, and systematic comparisons were conducted between the Basic Scales and symptoms/diagnoses derived from the Schedule of Affective Disorders and Schizophrenia for School-Age Children (K-SADS-III-R; Ambrosini, Metz, Prabucki, & Lee, 1989). Using only K-SADS-III-R symptoms with high reliabilities (rs > .80), a comprehensive list of correlates was generated for the Clinical, Supplementary, and Content Scales. Additionally, stepwise discriminant functions successfully classified MMPI-A protocols according to K-SADS-III-R diagnoses. As an exploratory analysis, ethnic differences on MMPI-A profiles were also investigated, revealing significant differences among groups.

Adolescent↗
PubMed1999

Identification of random responding on the MMPI-A.

Although substantial research literature on the effects of random responding on the MMPI-2 exists, there is very limited data available on this issue with the MMPI-A. The purpose of this study was to evaluate the utility of selected MMPI-A validity scales in detecting differences in response patterns between protocols produced by 354 adolescents assessed in clinical settings and a group of 354 randomly produced MMPI-A protocols. Results indicate that MMPI-A validity and basic clinical scales differ significantly between random and clinical groups and that MMPI-A validity Scales F, F1, F2, and VRIN appear to be most useful in correctly identifying protocols from actual clinical participants versus randomly generated response patterns. Findings are discussed in terms of the dramatic effects of the sample base rate for random responding on overall classification accuracy results. Furthermore, it was noted that the optimal cutting scores for MMPI-A Scales F, F1, F2, and VRIN were largely consistent with interpretive recommendations found in the test manual (Butcher et al., 1992) when the relative frequency of random response protocols to clinical protocols was evaluated at a ratio of 1:10. Finally, future recommendations for evaluation of the F1-F2 difference score and the TRIN scale are offered in terms of the most relevant research designs to evaluate these measures.

Adolescent↗
PubMed2001

Evaluation of an MMPI--a short form: implications for adaptive testing.

Efforts to develop a viable short form of the MMPI (Hathaway & McKinley, 1943) span more than 50 years, with more recent attempts to significantly shorten the item pool focused on the use of adaptive computerized test administration. In this article, we report some psychometric properties of an MMPI-Adolescent version (MMPI-A; Butcher et al., 1992) short form based on administration of the first 150 items of this test instrument. We report results for both the MMPI-A normative sample of 1,620 adolescents and a clinical sample of 565 adolescents in a variety of treatment settings. We summarize results for the MMPI-A basic scales in terms of Pearson product-moment correlations generated between full administration and short-form administration formats and mean Tscore elevations for the basic scales generated by each approach. In this investigation, we also examined single-scale and 2-point congruences found for the MMPI-A basic clinical scales as derived from standard and short-form administrations. We present the relative strengths and weaknesses of the MMPI-A short form and discuss the findings in terms of implications for attempts to shorten the item pool through the use of computerized adaptive assessment approaches.

Adolescent↗
PubMed2001

An evaluation of the usefulness of the MMPI-2 F(p) scale.

The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) F(p) scale was developed by Arbisi and Ben-Porath (1995) by identification of 27 items endorsed by fewer than 20% of individuals in both normal and psychiatric samples. The F(p) scale was designed for applications in settings characterized by high base rates of serious psychopathology, such as psychiatric inpatient units, and is proposed as a useful scale in discriminating overreported protocols from those produced by patients with serious psychopathology. In this study we investigated the characteristics of this scale in a sample of 617 psychiatric inpatients who responded to the MMPI-2 under standard conditions, and 203 overreported protocols derived in research studies conducted with normal adult participants instructed to simulate various forms of serious psychopathology. Results of this study are consistent with prior reports of a relatively low frequency of item endorsement for F(p) scale items in psychiatric samples, and intercorrelations between the F(p) scale and the MMPI-2 basic clinical scales in clinical samples that are generally lower than those produced between either F or Fb and the basic clinical scales. However, this intercorrelational pattern between F(p) and the MMPI-2 basic scales was not as consistent for the overreported sample. Additionally, the F(p) scale appears to be effective in discriminating overreported from accurate MMPI-2 protocols, with some evidence that the optimal cutting scores for this and other MMPI-2 infrequency scales may differ as a function of gender. Finally, these findings do not show clear evidence of improved group prediction derived from the use of the F(p) scale in contrast to results obtainable through the use of the MMPI-2 F scale.

Adolescent↗
PubMed2002

MMPI-A validity scale uses and limitations in detecting varying levels of random responding.

Although there is a substantial research literature on the effects of random responding on the MMPI-2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989), there are very few studies available on this topic with the MMPI-A (Butcher et al., 1992). Archer and Elkins (1999) found that MMPI-A validity scales F and VRIN were particularly useful in detecting entirely random profiles from those derived standardly in clinical settings but noted that "all random" protocols could not be used to evaluate the usefulness of the T-score difference between the first half (F1) and the second half (F2) of the MMPI-A test booklet. Following up on this issue, this study extended the methodology of previous research by examining the hit rate, positive predictive power, negative predictive power, sensitivity, and specificity of VRIN, F, F1, F2 and the absolute value of the T-score difference between F1 and F2 (denoted as IF1-F21) in 5 samples varying in the degree of protocol randomness. One of the samples consisted of 100 adolescent inpatients administered the MMPI-A under standard instructions, and another sample consisted of 100 protocols randomly generated by computer. The additional 3 samples of 100 protocols each contained varying degrees of computer-generated randomness introduced in the latter half of the MMPI-A item pool. Over- all, the results generally indicate that several MMPI-A validity scales are useful in detecting protocols that are largely random, but all of these validity scales are more limited in detecting partially random responding that involves less than half the total item pool located in the second half of the test booklet. Clinicians should be particularly cautious concerning validity inferences based on the observed T-score difference that occurs for the F1 and F2 subscales and current findings do not support the clinical usefulness of this index.

Adolescent↗
PubMed2002

A taxometric analysis of the MMPI-2 Depression scales.

The MMPI (Hathaway & McKinley, 1943) and MMPI-2 (Butcher et al., 2001) have long been used as measures of psychopathology. Both clinicians and researchers have noted the widespread existence of negative affectivity on the MMPI and MMPI-2 that may elevate scale scores and eclipse the tests' ability to differentiate depression from other clinical disorders. Using taxometric analyses, in this study we sought to test directly whether the MMPI-2 depression scales could differentiate patients with depressive symptoms from patients with other disorders. A large psychiatric sample (N = 2,000) was utilized and analyses were run separately for men and women. Taxometric analyses did not find a MMPI-2 Depression scale cut point that categorizes patients with depressive symptoms from other patients. Rather, these findings support previous studies finding an underlying dimensionality of depression. We discuss implications for MMPI-2 scale use and depression nosology in light of these findings.

Adolescent↗
PubMed2004

MMPI-2 scores in the outcome prediction of gastric bypass surgery.

BACKGROUND: A psychological assessment is critical for morbidly obese patients seeking Roux-en-Y gastric bypass (RYGBP) surgery. The Minnesota Multiphasic Personality Inventory (MMPI) has been widely used in past psychological studies of bariatric surgery patients, but, to date, there is no published research on the more recent version of the MMPI, the Minnesota Multiphasic Personality Inventory-2 (MMPI2), and its relation to RYGBP outcome. This investigation was designed to evaluate the predictive validity of the MMPI-2 with respect to outcome of RYGBP for morbid obesity. METHODS: The research involved a retrospective analysis of MMPI-2 scores of 2 groups of patients 1 year following RYGBP: 1). those who lost >or= 50% of their excess weight and 2). those who lost <50% of their excess weight. Subjects were 52 morbidly obese patients (mean age 44 years, mean BMI 56 kg/m2). The measurement of psychological variables consisted of the MMPI-2 scores of 3 validity scales, 10 clinical scales, and 3 Content Scales, and BMI. RESULTS: Those who lost <50% excess weight scored significantly higher than those who lost >50% excess weight on the F,Hysteria, Paranoia, and Health Concerns scales of the MMPI-2, and significantly lower on the Masculinity-femininity scale. Stepwise regression analysis found that a combination of the Health Concerns and Masculinity-femininity scales was the most accurate predictor model for 1-year post-surgery weight loss. CONCLUSION: A standard personality measure, the MMPI-2, appears to be associated with weight loss outcome 1 year after RYGBP. Psychological traits such as anxiety and excessive health concerns are likely to influence bariatric surgical outcome.

Adult↗
PubMed1988

An application of an MMPI classification system for predicting outcome in a small clinical sample of alcoholics.

The purpose of this study was to apply Conley and Prioleau's MMPI classification system to predict drinking and adjustment outcome for a sample of 113 inpatient alcoholics. Although a dual grouping (termed "reactive" and "essential") of the original six MMPI subtypes was found to be more useful for this sample size, the findings, nevertheless, supported the predictive value of this MMPI classification system. The "essential" group, derived from a triad of Psychopathic and Schizoform MMPI types was rated as drinking significantly more often during 4 years after treatment than the "reactive" group, derived from a triad of Neurotic and Classic MMPI types (Fisher's p = .02). Females classified as the "essential" MMPI group were rated as having significantly poorer adjustment (Fisher's p = .007) than females classified as the "reactive" MMPI group.

Adolescent↗
PubMed1997

Validation of the Keane MMPI-PTSD Scale against DSM-III-R criteria in a sample of battered women.

The Keane, Malloy, & Fairbank (1984) MMPI-PTSD Scale has proven to be a reliable and valid measure of posttraumatic stress disorder (PTSD) in combat veterans. However, few studies have examined the MMPI-PTSD Scale's validity in civilian trauma victims, including battered women. In the present study, 46 battered women who completed the MMPI-PTSD Scale were assigned to PTSD-Positive and PTSD-Negative groups based on a structured diagnostic interview and then contrasted on the MMPI-PTSD Scale. Significantly higher scores on the scale were found in the PTSD-Positive group. Also, a cutoff score of 22 on the MMPI-PTSD Scale correctly classified 80.4% of the sample. Correlations between the MMPI-PTSD and DSM-III-R criteria suggest that the scale is moderately sensitive to many of the symptoms particularly those involving intrusion and psychological arousal, comprising the diagnosis of PTSD. This investigation provides further support for the validity of the MMPI-PTSD Scale and its utility in screening battered women for PTSD.

Adolescent↗
PubMed1996

Searching for conscientiousness on the MMPI-2.

It has been argued that the revised Minnesota Multiphasic Personality Inventory (MMPI-2) fails to measure the Big Five dimension of conscientiousness (C) an assertion supported by the research finding that none of the factors underlying the MMPI correlate substantially with the C factor of the NEO Personality Inventory (NEO-PI)-a popular operationalization of the Big Five model. In this study we reconsidered the relationship between the MMPI-2 item pool and the C factor of the NEO-PI-R (Form S). Collections of MMPI-2 C markers did not correlate much higher than .5 with the NEO-PI-R factor scale in cross-validation hold-out samples. Most pervasive, however, was the finding that MMPI-2 item markers of C were also strongly (in many cases, more highly) related to the NEO-PI-R factor of neuroticism (N). Efforts to purify collections of MMPI-2 C markers, first by careful item selection and then by suppression of N variance, were met with limited success. Intercorrelations among NEO-PI-R scales suggest that the difficulty in finding markers that discriminate between N and C extends beyond any shortcomings of the MMPI-2 item pool.

Journal Article↗
PubMed1997

MMPI-2 interpretation and closed-head trauma: cross-validation of a correction factor.

A substantial body of research suggests that the MMPI-2 contains a number of items that are sensitive to closed-head trauma (CHT) and other neurologic conditions. A correction procedure was recommended by Gass (1991) using an index consisting of 14 neurologically sensitive items that were extracted from a predominantly male veteran sample of CHT patients. The generalizability of these correction items was assessed in the present study by investigating the MMPI-2 scoring characteristics of an outpatient referral sample of 54 CHT patients (28 male, 26 female) who had sustained recent and mild head trauma. Their frequency of endorsement of MMPI-2 was contrasted with that of the MMPI-2 normative sample (N = 2,600). Chi-square analyses identified the 15 MMPI-2 items that best differentiated this CHT sample from normal subjects. The results indicate that: (a) unlike those in an inpatient psychiatric sample (n = 524), the MMPI-2 items that best distinguished the CHT Ss from normals consisted of neurologic symptom content; (b) of these 15 items, 10 were included in the 14-item correction (Gass, 1991); and (c) 13 of the 14 correction items effectively discriminated the cross-validation sample of CHT Ss from normals. These findings offer empirical support for the application of the MMPI-2 correction with patients who have mild and recent head trauma.

Journal Article↗
PubMed1977

Application of the Faschingbauer Abbreviated MMPI with alcoholic patients.

There is a need to examine the usefulness of an abbreviated form of the MMPI with alcoholic patients. The Faschingbauer Abbreviated MMPI (FAM) was administered to 225 male alcoholics. The correlations between the T-scores for the FAM and their full MMPI counterparts ranged from .761 to .919. Examination of the high-point code for each FAM-MMPI pair yielded 52.89% with identical high-point codes. A comparison between the MMPI and the FAM pairs showed that 78% of the profiles had the same number of scales with T-score above 70 plus or minus one scale. The authors suggest that when a full MMPI administration is not feasible, the FAM is a valid substitute for alcoholic populations.

Adult↗