PubMed Health⌕ Search

Biomedical subjects

Y S Ben-Porath

Publications and source records attributed to Y S Ben-Porath.

17 recordsLinked to original sources
PubMed2000

A comparison of sexually abused and non-sexually abused adolescents in a clinical treatment facility using the MMPI-A.

OBJECTIVE: In the current study, the adolescent version of the Minnesota Multiphasic Personality Inventory, the MMPI-A, was used to address concerns voiced about the mixing of different developmental ages, use of inadequate comparison groups, and the lack of reliance on reliable and valid measures of psychological, behavioral, and psychosocial problems used in previous studies of sexually abused children and adolescents. METHOD: A total of 107 adolescents in residential treatment (73 boys and 34 girls) were included in the study. Seventy-two of these adolescents had reportedly been sexually abused (42 boys and 30 girls); 35 had not been abused (31 boys and 4 girls). Predictions based on previous research with adolescents were made and tested regarding which MMPI-A validity, clinical, and content scales would differ between the sexually abused and non sexually abused groups of adolescents. RESULTS: Overall, and consistent with many predictions, sexually abused adolescents had both statistically and clinically higher elevations on several MMPI-A scales than did their non-abused counterparts. No scales were more elevated for non-abused adolescents than for abused adolescents. CONCLUSIONS: Sexually abused adolescents in residential treatment, as a group, present with concerns that their non-abused counterparts did not have, or did not share to the same extent. Treatment recommendations based on the MMPI-A scale elevations are provided, limitations of the current study discussed, and directions for further research are suggested.

Adolescent↗
PubMed1997

Selected MMPI-2 scales' ability to predict premature termination and outcome from psychotherapy.

Research examining the MMPI's ability to predict premature termination has yielded discrepant findings. This may be due, in part, to previous operational definitions of premature termination and extensive analysis on inadequately sized samples. This study addressed both methodological issues. This study examined MMPI-2 clinical Scales 2, 4, and 7 and content scales DEP, ASP, ANX, and TRT as predictors of premature termination and psychotherapeutic outcome in 86 adult clients seeking services at a university-based clinic. Premature termination was operationalized as therapists' ratings of clients' readiness for termination. Psychotherapeutic outcome was operationalized as therapists' ratings of the clients' progress in therapy goals, improvement in global psychopathology, improvement in current functioning, and global improvement. None of MMPI-2 scales predicted readiness for termination. However, significant associations were found between specific MMPI-2 scales and three of the four outcome ratings, with the content scales emerging as better predictors. The implications of these findings are discussed to help guide future research in this area.

Adolescent↗
PubMed1996

Evaluating the similarity of MMPI-2 and MMPI profiles: reply to Dahlstrom and Humphrey.

We review issues that have arisen in exchanges with Dahlstrom and Humphrey (Dahlstrom & Humphrey, 1996; Humphrey & Dahlstrom, 1995) about assessing the comparability of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) and the MMPI. We point out the limitations of Q correlations (without contending that D(2) is "the only legitimate function of profile comparability," as Dahlstrom and Humphrey, 1996, p. 350, claim we do), and explain why Dahlstrom and Humphrey's (1996) new Q-correlational results, correctly interpreted, are consistent with our own previous observations and conclusions. We stress again the importance of both overall profile elevation and profile "definition" in making code-type assignments. Nonrestrictive code types ignore these profile characteristics, and their use needlessly lowers MMPI-2/MMPI code-type congruences and raises the incidence of profile misinterpretations. Our recommendation of well-defined MMPI-2 code types stands.

Comment↗
PubMed1995

How (not) to evaluate the comparability of MMPI and MMPI-2 profile configurations: a reply to Humphrey and Dahlstrom.

Humphrey and Dahlstrom (1995) presented a study on the comparability of MMPI/MMPI-2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) profiles in which they concluded that "the bases for clinical interpretation derived from the MMPI and MMPI-2 profiles were sufficiently at variance to require different conclusions" [sic] (p. 2). In this brief critique, we identify procedural and data-analytical deficiencies that invalidate Humphrey and Dahlstrom's argument. Their blanket recommendation based on this argument, namely, that clinicians routinely plot both MMPI and MMPI-2 profiles, is unwarranted.

Comment↗
PubMed1995

Comparability and validity of computerized adaptive testing with the MMPI-2.

The comparability and validity of a computerized adaptive (CA) Minnesota Multiphasic Personality Inventory-2 (MMPI-2) were assessed in a sample of 571 undergraduate college students. The CA MMPI-2 administered adaptively Scales L, E the 10 clinical scales, and the 15 content scales, utilizing the countdown method (Butcher, Keller, & Bacon, 1985). All subjects completed the MMPI-2 twice, with three experimental conditions: booklet test-retest, booklet-CA, and conventional computerized (CC)-CA. Profiles across administration modalities show a high degree of similarity, providing evidence for the comparability of the three forms. Correlations between MMPI-2 scales and other psychometric measures (Beck Depression Inventory; Symptom Checklist-Revised; State-Trait Anxiety and Anger Scales; and the Anger Expression Scale) support the validity of the CA MMPI-2. Substantial item savings may be realized with the implementation of the countdown procedure.

Journal Article↗
PubMed1994

Item level improvements for use of the MMPI with adolescents.

The decision to develop a separate adolescent form of the Minnesota Multiphasic Personality Inventory (i.e., the MMPI-A) raised questions about continued use of 20 original items that seemed unnecessarily ambiguous in content when employed with younger students (Ss). The responses of 362 academically gifted boys, aged 14 to 17 years, from an urban Catholic high school were compared on the experimental 704-item Form TX of the MMPI and a form containing 20 rewritten and 9 control items. The psychometric properties of the rewritten items indicated the same or better performance than that on the original versions while improving the items' face validity and reducing item ambiguity. Responses from 321 Ss to a follow-up questionnaire suggested eliminating offensive or irrelevant items and reducing the test's length would increase acceptance of the MMPI-A.

Adolescent↗
PubMed1993

Incremental validity of the MMPI-2 Content Scales in the assessment of personality and psychopathology by self-report.

The incremental contribution of the MMPI-2 Content Scales to the prediction of scores on self-report measures of personality and psychopathology was investigated. The MMPI-2, Beck Depression Inventory, State-Trait Personality Inventory, and Symptom Checklist-90-Revised were administered to 596 subjects: 339 women and 257 men. Zero-order correlational analyses indicated that both clinical and Content Scales correlated with each of the criterion measures. In all but one case, an MMPI-2 Content Scale was found to have the highest correlation with the extratest variables. Combined hierarchical, stepwise regression analyses demonstrated that the MMPI-2 Content Scales possess incremental validity vis-à-vis the clinical scales for both genders in relation to all of the criterion measures. Additional analyses indicated that the MMPI-2 clinical scales also possess incremental validity vis-à-vis the Content Scales. However, the incremental contribution of the clinical scales was of lesser magnitude. Implications of these findings for test interpretation and future research with the MMPI-2 are discussed.

Adolescent↗
PubMed1993

Code-type comparability of the MMPI and MMPI-2: analysis of recent findings and criticisms.

The introduction of the MMPI-2 has stimulated studies of its comparability with the MMPI. Graham, Timbrook, Ben-Porath, and Butcher (1991) consider the congruence between MMPI-2 and MMPI code types substantial, but Dahlstrom (1992) has questioned their appraisal, criticizing their use of "well-defined" code types. Our own analysis supports Graham and colleagues' (1991) conclusions and provides reasons for favoring narrow code types (such as well- defined code types) over nonrestrictive ones. We also offer a brief historical review of MMPI code typology as background for our recommendation that future MMPI-2 research not be limited to studies of code-type correlates.

Journal Article↗
PubMed1992

New measures for assessing alcohol and drug abuse with the MMPI-2: The APS and AAS.

We introduce two new scales for assessing substance abuse problems with the Minnesota Multiphasic Personality Inventory-2 (MMPI-2): the Addiction Potential Scale (APS), a 39-item empirically derived scale, developed by contrasting the responses of a large residential substance abuse sample with responses from both normative and psychiatric control groups; and the Addiction Acknowledgement Scale (AAS), a 13-item face-valid scale, constructed rationally and with attention to internal consistency. Both new scales are shown to discriminate well between groups and substantially better than other selected substance abuse scales. Covariation between the scales and joint effectiveness are examined. Finally, limitations for their practical utility are expressed, and considerations for future research are identified.

Adult↗
PubMed1991

Mood changes during the menstrual cycle and their relation to the use of oral contraceptive.

The relation between the use of oral contraceptives and changes in positive and negative affect over the course of the menstrual cycle was studied in 50 women who completed a mood questionnaire daily during their menstrual cycle. Results indicated that users of oral contraceptives experience a higher level of positive affect during the cycle than do non-users. Positive affect scores were significantly higher than negative affect scores in the menstruation, follicular and luteal phases of the cycle. There were no significant differences between the groups and no discernible phasic changes on negative affect. Discussion of these findings centers on their implications concerning the relation between positive affect and oral contraceptives, the support they provide for the independence of positive and negative affect, and future directions for research in this area.

Adolescent↗
PubMed1991

Personality and aging: a study of the MMPI-2 among older men.

We examined whether separate norms for older men are necessary for the revised Minnesota Multiphasic Personality Inventory (MMPI-2). Scores from 1,459 men in the Normative Aging Study (NAS) (age: M = 61.27, SD = 8.37) were contrasted with those from 1,138 men from the MMPI Restandardization Study (age: M = 41.71, SD = 15.32). Results showed that scores on the MMPI-2 validity, clinical, and content scales for the NAS men were highly similar to those from the MMPI-2 Restandardization sample. There were also few differences between the two groups at the item level. Within-sample analyses revealed some differences between age groups. However, the magnitudes of these differences were small and may represent the single or combined effects of cohort factors and age-related changes in physical health status rather than age-related changes in psychopathology per se. We concluded that special, age-related norms for the MMPI-2 are not needed for older men.

Adolescent↗
PubMed1991

Assessment of coping: an empirical illustration of the problem of inapplicable items.

The prevalence and effects of inapplicable items on the Ways of Coping Questionnaire (WOC) were studied. Three hundred seventy-six college students completed the WOC twice, referring to both heterogeneous (i.e., different types of) and homogeneous (the same) stressors. In addition to the standard procedure for administering this questionnaire, subjects were asked to identify items that were inapplicable to the stressors with which they were coping. Item inapplicability ranged from 2.1% to 83.9%, with a mean of 21.5% inapplicability across all WOC items. Application of a correction for item inapplicability demonstrated that situational effects are confounded by this phenomenon and may not hold up when the correction is applied. Implications of these findings include the possibility that previous research has over- or misidentified situational effects on coping.

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↗
PubMed1991

Comparability of computerized adaptive and conventional testing with the MMPI-2.

A computerized adaptive version and the standard version of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) were administered 1 week apart to a sample of 155 college students to assess the comparability of the two versions. The countdown method was used to adaptively administer Scales L, F, the I0 clinical scales, and the 15 new content scales. Profiles across administration modalities show a high degree of similarity, providing evidence for the comparability of computerized adaptive and conventional testing with the MMPI-2. Substantial item savings were found with the adaptive version. Future directions in the study of adaptive testing with the MMPI-2 are discussed.

Journal Article↗
PubMed1990

External validity of the new Devereux Adolescent Behavior Rating scales.

The discriminant and concurrent validity of the five new scales for the Devereux Adolescent Behavior Rating Scale (DAB) was explored using a heterogeneous sample of psychiatric and substance abuse patients. Consistent with predictions, the substance abuse patients scored higher on the Acting Out Behaviors (AOB) and Heterosexual Interests (HI) scales, and psychiatric patients scored higher on the Psychotic Behaviors scale. Gender differences also were found, including boys being rated higher on Acting Out Behaviors, and girls higher on Heterosexual Interests. The new DAB scales demonstrated sufficient concurrent validity using a thorough record review and a patient rating scale (the Child Behavior Checklist [CBCL]). The Neurotic/Dependent Behaviors scale (NDB) showed a consistent relationship with substance abuse and several other measures of more externalizing behaviors, in addition to the predicted relationships with anxious, tense, and dependent behaviors. The Withdrawn/Timid Behaviors scale (WTB) proved to be a purer measure of internalizing behaviors in both sexes.

Acting Out↗
PubMed1989

The two-factor model of self-reported mood: a cross-cultural replication.

The cross-cultural stability of a two-factor model of self-reported mood was studied in Israel. Sixty women and 25 men filled out a 58-adjective Mood Check List, everday for 45 consecutive days. Replicatory factor analyses demonstrated that the two-factor model of mood is applicable to both Israeli men and women and that this structure is consistent across American and Israeli cultures. Three implications of these findings are discussed. Replication of this structure in a diversified and unique culture, such as Israel, coupled with a previous replication in Japan (Watson, Clark, & Tellegen, 1984), is interpreted as lending considerable support to the assertion that this model of mood is cross-culturally consistent. Theoretical formulations and empirical findings derived and discovered in the U.S. can now be employed in planning and interpreting mood studies in Israel. The results of such studies can be incorporated within the general body of knowledge accumulating on this topic in the U.S.

Adult↗