Biomedical subjects

B A Kopper

Publications and source records attributed to B A Kopper.

14 recordsLinked to original sources

PubMed2001

Factor structure and psychometric properties of the brief Mizes Anorectic Cognitions questionnaire.

The Mizes Anorectic Cognitions-Revised (MAC-R) questionnaire is a 24-item self-report instrument designed to assess cognitions associated with anorexia and bulimia nervosa. We examined the factor structure and psychometric properties of the MAC-R in a sample of 290 undergraduates. We found that a brief 3-factor oblique model (composed of 12 items) of the MAC-R provided acceptable fit to the present sample data. This model was largely invariant across male and female participants. The brief version of the MAC-R (the BMAC) and subscale scores correlated significantly with scores from related measures of eating disorders, showing evidence of concurrent validity. The BMAC total and subscales also showed evidence of discriminant validity by differentiating between empirically defined subclinical eating disorders and control participants. Both logistic regression and discriminant function analyses showed that only the self-control and self-esteem subscale was most useful in distinguishing between the subgroups.

Adult↗

PubMed2001

Assessment of suicidal ideation in young men and women: the incremental validity of the MMPI-2 content scales.

This study of 139 women and 75 men investigated the incremental validity of the MMPI-2 in assessing suicidal ideation by examining the unique contribution of the 15 content scales beyond what is provided by the 13 basic validity and clinical scales. A multivariate analysis of variance resulted in a significant difference on the validity, clinical, and content scales for young men and women. Women scored significantly higher than men on the Hypochondriasis, Depression, Conversion Hysteria, and Masculinity-Femininity scales and lower than men on the Hypomania, Fears, Anger, and Type A scales. The results of the hierarchical regression analyses indicated that for women, hopelessness and reasons for living; the Correction, Paranoia, Conversion Hysteria, Psychopathic Deviate, and Hypomania scales; and the Anger content scale contributed significantly to the prediction of suicidal ideation. For men, hopelessness, the Lie and Hypomania scales, and the Type A content scale contributed significantly to the prediction of suicidal ideation. Thus, it would appear that a different pattern of concerns and difficulties are manifested in young men and women related to suicidal ideation. Limitations of the present study and future directions for research are discussed.

Adult↗

PubMed2001

The Suicidal Behaviors Questionnaire-Revised (SBQ-R): validation with clinical and nonclinical samples.

Past suicidal behaviors including ideation and attempts have been identified as significant risk factors for subsequent suicidal behavior. However, inadequate attention has been given to the development or validation of measures of past suicidal behavior. The present study examined the reliability and validity of a brief self-report measure of past suicidal behavior, the Suicidal Behaviors Questionnaire-Revised (SBQ-R). Participants included psychiatric inpatient adolescents, high school students, psychiatric inpatient adults, and undergraduates. Logistic regression analyses provided empirical support for the usefulness of the SBQ-R as a risk measure of suicide to differentiate between suicide-risk and nonsuicidal study participants. Receiver operating characteristic (ROC) analyses indicated that the most useful cutoff scores on the SBQ-R were 7 for nonsuicidal samples, and 8 for clinical samples. Both the single SBQ-R Item 1 and SBQ-R total scores are recommended for use in clinical and nonclinical settings.

Adolescent↗

PubMed2001

Development and initial validation of the Self-harm Behavior Questionnaire.

Evaluation of suicide-related behaviors and thoughts about suicide with a newly developed self-report instrument is described. The Self-Harm Behavior Questionnaire (SHBQ; Gutierrez, 1998) generates detailed clinical information from an easy to administer and score self-report form. A sample of 342 participants were drawn from university undergraduate students enrolled in various psychology courses. Participants were then divided into a severe suicidal ideation group (n = 20) and a nonsuicidal control group (n = 20) to conduct subgroup and criterion-related validity analyses. Preliminary analyses indicate this new questionnaire is both valid and reliable when used with young adults drawn from a nonclinical population. The questionnaire should be of use to both clinicians and researchers due to the flexibility of the data generated.

Adult↗

PubMed2001

Development and psychometric properties of the Student Worry Questionnaire-30.

Described are the development and initial psychometric properties (Ns = 50 and 188) of a self-report measure, the Student Worry Questionnaire-30, for use with college undergraduates. Exploratory principal components analyses (Ns = 388, 350, and 396) with oblimin rotation indicated six domains of worrisome thinking, financial-related concerns, significant others' well-being, social adequacy concerns, academic concerns, and general anxiety symptoms. The total score and scale scores showed internal consistency of .80 to .94. Also, test-retest reliability analyses (.75 to .80) support consistency of responses over 4 wk. Strong evidence for convergent validity) was indicated. Confirmatory factor analysis confirmed the fit of the 6-factor oblique model. Limitations of the present studies, and directions for research are discussed.

Adult↗

PubMed2000

The Pain Catastrophizing Scale: further psychometric evaluation with adult samples.

Previous studies with undergraduates have provided support for the reliability and oblique three-factor structure of a new scale, the Pain Catastrophizing Scale (PCS). We examined the reliability and validity of the PCS in adult community and pain outpatient samples. The PCS showed a high internal consistency in both groups. Using data from the community sample, confirmatory factor analyses showed that the PCS taps a single construct characterized by three related dimensions. Gender differences were obtained on the PCS total score in the community and the outpatient samples. The analyses also showed significant differences between the community and the outpatient samples on the PCS total and subscales. Overall, the results showed strong evidence of criterion-related, concurrent, and discriminant validity for the PCS in the community sample. Limitations of the present study are discussed.

Adult↗

PubMed2000

Why young people do not kill themselves: the reasons for living inventory for adolescents.

Assessed the reliability, validity, and predictive power of a new measure, the Reasons for Living Inventory for Adolescents (RFL-A; Osman et al., 1998). A group of 206 (101 boys and 105 girls) adolescent psychiatric inpatients completed the RFL-A, Minnesota Multiphasic Personality Inventory for Adolescents (Butcher et al., 1992), and a packet of self-report measures. Additional information about the patients including diagnosis and suicide status were obtained from their medical records. It was determined that the RFL-A is a valid and reliable measure of adolescent suicide risk potential. Additionally, the RFL-A possesses better predictive power than the Beck Hopelessness Scale (Beck, Weissman, Lester, & Trexler, 1974). A discussion of the clinical and research utility of the RFL-A is included along with suggestions for future research.

Adolescent↗

PubMed2000

The multi-attitude suicide tendency scale: further validation with adolescent psychiatric inpatients.

The present study was designed to examine the construct validity and psychometric properties of the Multi-Attitude Suicide Tendency Scale in adolescent psychiatric inpatients. This new scale has four subscales: attraction to life, repulsion by life, attraction to death, and repulsion by death. Confirmatory factor analysis of the scale items provided support for the fit of the 28-item, four-factor model. Results of logistic regression analyses revealed that high scores on the repulsion by life and the attraction to death subscales were useful in assessing the risk for suicide attempts. Results of the hierarchical regression analysis showed that high repulsion by life and low attraction to life subscale scores contributed to the prediction of scores on the suicide probability scale. We also examined gender differences on the four subscales and the psychological correlates of each subscale.

Adolescent↗

PubMed1998

Clinical utility of the MMPI-A content scales and Harris-Lingoes subscales in the assessment of suicidal risk factors in psychiatric adolescents.

This study of 143 inpatient adolescents (68 boys and 75 girls) investigated the clinical utility of the MMPI-A in assessing suicidal risk factors by examining the unique contribution of the content scales and Harris-Lingoes subscales beyond what is provided by the basic clinical scales. The results of the regression analyses indicated that for boys, the Depression, Psychopathic Deviate and Hypomania scales; Alienation and Anxiety content scales: and Subjective Depression. Self Alienation, Imperturbability, and Amorality Harris-Lingoes subscales contributed significantly to the prediction of suicide probability. For girls, the Depression, Psychopathic Deviate, and Hypomania scales; Family Problems, Conduct Problems, School Problems, Depression, and Social Discomfort content scales; and the Subjective Depression, Self Alienation, Psychomotor Acceleration, and Imperturbability Harris-Lingoes subscales contributed significantly to the prediction of suicide probability.

Adolescent↗

PubMed1998

The Reasons for Living Inventory for Adolescents (RFL-A): development and psychometric properties.

The role of adaptive beliefs and attitudes against suicide has not been given adequate attention in the clinical or assessment literature. This article reports on the development and initial psychometric properties of a 32-item self-report inventory, the Reasons for Living Inventory for Adolescents (RFL-A). In Phase 1, we used exploratory and confirmatory factor analyses to identify five correlated factors: Future Optimism, Suicide-Related Concerns, Family Alliance, Peer Acceptance and Support, and Self-Acceptance. In Phase 2, we cross-validated the 5-factor oblique model in a different group of adolescents recruited from two high schools. In addition, we examined evidence for convergent, discriminant, and construct validities. The coefficient alpha indices for the RFL-A total and scales were satisfactory. In Phase 3, we evaluated additional evidence of reliability and validity using samples of high school and psychiatric inpatient adolescents. The results suggest that the RFL-A is a short, reliable, and valid measure that is potentially useful in the assessment of adolescent suicidal behavior.

Adolescent↗

PubMed1998

The positive and negative suicide ideation inventory: development and validation.

We conducted two studies to develop and validate a brief self-report measure for assessing the frequency of positive and negative thoughts related to suicidal behavior. Items on this new measure, the Positive and Negative Suicide Ideation inventory, were generated by undergraduates. In Study 1, we administered a 20-item version of the inventory to 150 male and 300 female undergraduates and conducted an exploratory principal axis factor analysis with varimax rotation. Two factors, Positive Ideation and Negative Ideation, were retained. In Study 2, we conducted a confirmatory factor analysis to validate the fit of the one-factor and the oblique two-factor models to data from another sample of 84 men and 202 women. The oblique two-factor model provided an excellent fit to the sample data. We also examined preliminary evidence of concurrent and predictive validity. Over-all, these findings suggested that the inventory is a well-developed self-report measure for assessing the frequency of positive and negative thoughts related to suicidal behavior.

Adolescent↗

PubMed1997

The Beck Anxiety Inventory: reexamination of factor structure and psychometric properties.

Several exploratory factor-analytic studies of the Beck Anxiety Inventory (BAI; Beck, Epstein, Brown, & Steer, 1988) have reported two, four, and five factors. This study evaluated the fit of four competing models to data provided by a sample of 350 undergraduates. Results of the initial confirmatory factor analyses (CFA) provided strong support for the fit of the four-factor oblique model. Next, we respecified the four-factor model as a single second-order BAI. Results showed that the second-order model also provided adequate fit to the data. Evidence also supported the psychometric indices of reliability and convergent validity. Finally, we examined the relation of the BAI to several demographic variables. Limitations of the study are discussed.

Adult↗

PubMed1997

Factor structure, reliability, and validity of the Pain Catastrophizing Scale.

The Pain Catastrophizing Scale (PCS; Sullivan et al., Psychol. Assess. 7, 524-532, 1995) has recently been developed to assess three components of catastrophizing: rumination, magnification, and helplessness. We conducted three studies to evaluate the factor structure, reliability, and validity of the PCS. In Study I, we conducted principal-components analysis with oblique rotation to replicate the three factors of the PCS. Gender differences on the original PCS subscales were also analyzed. In Study II, we conducted confirmatory factor analyses to evaluate the adequacy of fit of four alternative models. We also evaluated evidence for concurrent and discriminant validity. In Study III, we evaluated the ability of the PCS and subscales to differentiate between the responses of clinic (students seeking treatment) and nonclinic undergraduate samples. Also, in the clinic sample, we evaluated evidence of concurrent and predictive validity for the PCS. The internal consistency reliability indices for the total PCS and subscales were examined in all three studies. Limitations and future directions are discussed.

Adult↗

PubMed1996

The Brief Reasons for Living Inventory for Adolescents (BRFL-A).

This study modified and evaluated the psychometric properties of the Reasons for Living Inventory (RFL) in samples of adolescents. Internal consistency reliability, corrected item-total scale correlation, and exploratory factor analysis procedures were used with a mixed sample of 260 adolescents to identify 14 items for the brief version of the RFL (BRFL-A). Confirmatory factor analyses provided support for the five-factor oblique structure of the BRFL-A in a psychiatric inpatient sample with a range of suicidal behaviors. Reliabilities of the BRFL-A subscales were satisfactory. Four of the five subscales differentiated between suicidal and nonsuicidal adolescents. Significant correlations were found between three BRFL-A subscales and several suicide indices. Convergent-discriminant validity was examined by correlating the BRFL-A subscales with the Minnesota Multiphasic Personality Inventory-Adolescents (MMPI-A) Content Scales. Limitations of the study are discussed.

Adaptation, Psychological↗