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.

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.

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.