Income inequality and risk of suicide in New York City neighborhoods: a multilevel case-control study

Evidence on the relationship between income inequality and suicide is inconsistent. Data from the New York City Office of the Chief Medical Examiner for all fatal injuries was collected to conduct a multilevel case-control study. In multilevel models, suicide decedents (n=374) were more likely than accident controls (n=453) to reside in neighborhoods with greater income inequality even after controlling for individual characteristics; this relation was modified by age with an effect overall and among decedents aged 15-34 but not among decedents 35-64. These data suggest that income inequality may contribute to the risk of suicide in younger adults.     

A Method for Introducing the Concepts of Chaos Theory to Medical Students

Chaos theory is beginning to find applications in the field of medicine. The theory of chaos should be introduced to students to help them as they make the transition from learning the scientific literature to actually applying this newly acquired knowledge in clinical situations. Chaos theory will give the students a powerful conceptual framework from which they can better understand the limits of predictability in clinical situations. Failure to understand the limits of predictability in chaotic natural systems will invariably lead to frustration in both patients and physicians.     

Situational constraint and type of causal explanation: The effects on perceived “mental illness” and social rejection

The present study investigated the effects of situational constraint and type of causal explanation on the degree to which described behavior would be perceived as evidencing “mental illness” and the degree to which it would lead to social rejection.Results showed that both of these variables influenced the degree of attributed “mental illness”, the degree of attributed psychological disturbance, and the degree of social rejection. Behavior inappropriate to a situation was rated higher on all three of these variables. Behavior attributed to external pressures received lower ratings on these variables than that attributed to internal causes, to organic causes, or for which no apparent explanation was available.     

Factors Influencing Employee Beliefs That Pay Is Tied to Performance

The unique relationship of perceived pay level equity, perceived appraisal accuracy, merit increase satisfaction, trust in supervisor, and trust in top management to employee beliefs that pay is tied to performance was investigated in a sample of 658 managerial, professional, and clerical employees. Pay level equity, merit increase satisfaction, and trust in top management exhibited a significant unique relationship. Post hoc analysis found appraisal accuracy exhibited a significant unique relationship with belief that pay is tied to performance among employees receiving a lower or higher than expected performance appraisal, but not among employees receiving the expected performance appraisal.     

Childhood physical and sexual abuse and lifetime number of suicide attempts: a persistent and theoretically important relationship

BACKGROUND: Research to date has indicated that childhood abuse is associated with suicide, though little research has examined the unique contribution of specific types of abuse to suicidal behavior. We predict that childhood physical and violent sexual abuse will have a greater effect on suicide attempts than molestation and verbal abuse. METHODS: The National Comorbidity Survey data were used to test these predictions while controlling for a number of psychiatric and psychosocial variables. RESULTS: As expected, childhood physical and violent sexual abuse showed similar effects on lifetime suicide attempts, which were stronger than the effects of molestation and verbal abuse. LIMITATIONS: This was a cross-sectional, retrospective study, so true causality cannot be shown. Some measurement limitations exist. Additionally, effect sizes were small but still significant. CONCLUSIONS: While all forms of childhood abuse are troubling and create risk for future psychopathology and suicidality, the present study indicates that childhood physical and violent sexual abuse should be seen as greater risk factors for future suicide attempts than molestation and verbal abuse.     

A Visual Illustration of Induction in Multilevel Methods: The Problem of Leaders Awarding Countervailing Merit Components

Purpose

The purpose of this study is to illustrate the use of a multilevel technique, Within and Between Analysis (WABA), for inductively investigating the impact of how supervisory groups influence the process of awarding merit raises (permanent) and performance bonuses (temporary). From a levels of analysis perspective, is this relationship best modeled at the individual subordinate, the whole supervisory-group, or the within-group level?

Design

Archival merit pay data for 2 years were obtained for 71 managers and professionals nested within 21 supervisory groups who encompassed the entire management hierarchy of a 500+ person-manufacturing plant.

Findings

What appeared to be a countervailing relationship at the individual level (r _total = ?.64***), in which raises and bonuses were negatively correlated, was found to be a countervailing relationship at the whole supervisory-group level (r _between = ?.79*** vs. r _within = ?.36*). Given the statistically significant differences between supervisory groups, an induction toward a whole-group effect was made. These countervailing findings were replicated at the group level in the subsequent year’s data.

Implications

The whole-group effect indicates that managers were attempting to create some type of within-group equity by (1) minimizing variability within their groups, and (2), at the same time, trading off raises for bonuses at the whole-group level.

Originality

The application of WABA focuses on testing entities as well as variables, and it can provide a generalizable method for investigating levels of analysis issues in merit pay programs without necessarily advocating that only one level of analysis is universally potent. WABA also allows for the inductive investigation of additional levels of analysis as well as a variety of boundary conditions.