Revisiting the mediating role of leader–member exchange in transformational leadership: the differential impact model

Transformational leadership (TFL) has been proposed as an essential antecedent of leader–member exchange (LMX), which in turn affects outcomes in organizations. We extend this mediation hypothesis in two ways by proposing a differential impact model, which we test on three organizational outcomes: employee job satisfaction, employee organizational commitment, and leader effectiveness. First, we extend LMX’s mediational impact—which has previously only been tested for employee outcomes—to leader effectiveness. Second, we argue that this mediation will be stronger for outcomes that are more proximal rather than distal to dyadic relations between leader and followers (high proximity: job satisfaction; medium proximity: organizational commitment; low proximity: leader effectiveness). Meta-analytic structural equation modelling based on 132 studies revealed that LMX mediates TFL’s relationships with employee outcomes (more strongly for job satisfaction than for commitment), but not with leader effectiveness, whereas TFL showed a stronger direct link to leader effectiveness. The findings suggest that TLF and LMX contribute differentially to organizational outcomes depending on their proximity to dyadic relations between leaders and followers. The differential impact model uncovers leadership effectiveness processes, integrates influential leadership theories, and highlights the importance of distinguishing between different outcome measures and the processes facilitating them.     

Menstrual Reactivity: The Role of Gender-Specificity,Anxiety Sensitivity,and Somatic Concerns in Self-Reported Menstrual Distress

To determine the impact of gender roles, anxiety sensitivity, and somatic concerns on self-reported menstrual distress, two studies were conducted. In the first study using 278 primarily Caucasian college females, anxiety-sensitivity level, not current menstrual cycle phase, influenced reports of menstrual symptom severity and depression. Regardless of cycle phase at the time of self-report, women high in anxiety sensitivity reported significantly more depressed mood, trait anxiety, and retrospective menstrual symptoms. In the second study of 158 primarily Caucasian college females varying in anxiety sensitivity levels, adherence to sex role stereotypes, feminist beliefs, and illness attitudes were examined. Participants also completed measures of general premenstrual, most-recent premenstrual, and current menstrual symptoms. Women high in anxiety sensitivity reported the highest levels of sex-specificity, feminist embeddedness, and illness attitudes, with sex-specificity accounting for significant variance in current menstrual symptoms. Results are discussed within the context of the menstrual reactivity hypothesis, which proposes that beliefs surrounding the menstrual cycle and body sensations expectancies contribute to self-reports of greater menstrual distress. Women high in anxiety sensitivity appear to represent one subgroup vulnerable to menstrual reactivity.     

Variability of attention bias in socially anxious adolescents: differences in fixation duration toward adult and adolescent face stimuli

Prior research on attention bias in anxious youth, often utilising a visual dot probe task, has yielded inconsistent findings, which may be due to how bias is assessed and/or variability in the phenomenon. The present study utilises eye gaze tracking to assess attention bias in socially anxious adolescents, and explores several methodological and within-subject factors that may contribute to variability in attention bias. Attention bias to threat was measured in forty-two treatment-seeking adolescents (age 12–16 years) diagnosed with Social Anxiety Disorder. Bias scores toward emotional stimuli (vigilant attention) and bias scores away from emotional stimuli (avoidant attention) were explored. Bias scores changed between vigilance and avoidance within individuals and over the course of stimulus presentation. These differences were not associated with participant characteristics nor with self-reported social anxiety symptoms. However, clinician rated severity of social anxiety, explained a significant proportion of variance in the bias scores for adult, but not the adolescent, stimuli. Variability in attention bias among socially anxious adolescents is common and varies as a function of stimulus duration and type. Results may inform stimulus selection for future research.     

Efficacy of a Brief,School‐Based Bystander Bullying Intervention on High School Students' Alcohol Use

The authors examined the efficacy of a brief bystander bullying intervention on reducing alcohol use among high school students (N = 61). As hypothesized, high‐risk drinkers in the intervention group reported reduced drinking compared with control students at a 30‐day follow‐up.     

Effects of tobacco use on non-adherence to antiretroviral therapy among HIV-positive patients in South Africa

This study aimed to estimate the relationship between tobacco use and non-adherence to antiretroviral therapy (ART) in a South African sample. Participants were 1 963 HIV patients who attended a primary care clinic in Pretoria (female = 68.5%; black African = 99.5%; median age = 37.0 years; tobacco users only = 8.6%, problem drinkers only = 14.9%, and tobacco users and problem drinkers = 10.5%). In adjusted logistic regression analysis, tobacco use only was not significantly associated with non-adherence to ART. Alcohol use only (OR: 1.72; CI: 1.26, 2.36) and tobacco use and problem drinking (OR: 2.31; CI: 1.60, 3.33) were highly associated with non-adherence to ART.     

Functions of Identity in the Context of Being a Student: Development and Validation of the Functions of Student Identity Scale

A promising approach to the understanding of identity is the identity functions framework. However, its developmental specificities associated with adolescence remain unexplored. The aim of this study was to develop and test a new measure of the functions of identity as they relate to being a student. Consistent with the theoretical framework, an exploratory analysis with a subsample of high school students revealed five identity functions. A confirmatory analysis with a second subsample found that a higher-order model incorporating these five subscales demonstrated good fit to the data. A bifactor model and statistical indices indicated that it is appropriate to interpret a total student identity score using this instrument. The five subscales, and total scale, demonstrated good convergent validity with a measure of academic behavioral change. These preliminary results suggest that this new instrument presents good psychometric properties and that it is a suitable assessment instrument for the measurement of students’ processes and outcomes. For example, its associations with academic performance stages of changes suggest that this instrument will be useful for identifying students at risk for poor academic trajectories.     

A Comparison of Sexual Relationships Among Hispanic Men by Sexual Orientation: Implications for HIV/STI Prevention

Hispanic men experience high rates of HIV infection and other sexually transmitted infections (STIs) when compared to non-Hispanic whites. Many factors contribute to HIV/STI risk among Hispanic men. Some researchers have suggested that primary relationships may be a source of HIV/STIs because some men engage in sexual relationships outside of the primary relationship. However, little is known about this among Hispanic men, and less is known about how sexual relationships differ by sexual orientation. The purpose of this study was twofold: (1) to determine if Hispanic men engage in sexual relationships outside of primary relationships; and (2) to compare sex outside of primary relationships by sexual orientation. Data for this study were obtained from a larger study that investigated health risks of Hispanic men residing in the U.S.–Mexico border community. Participants were recruited from agencies that provided services to Hispanic men. Participants completed a structured interview that included questions about primary relationships and sex outside of primary relationships. The sample consisted of 103 Hispanic men (50 heterosexual, 43 gay, and 10 bisexual Hispanic men), but two participants refused to answer relationship questions, resulting in a sample of 101 Hispanic men. About one-third of the participants (n = 29) reported sex outside of the primary relationship, but no differences were found between the gay/bisexual and heterosexual men, X ² (2, N = 101) = 9.91, p = .128. More gay/bisexual men reported sex with the primary partner and another person at the same time than heterosexual men, X ² (2, N = 101) = 13.32, p = .010. More gay/bisexual men reported open relationships when compared to heterosexual men, X ² (2, N = 101) = 17.23, p = .008, and more gay/bisexual men reported sex outside the primary relationship without the primary partner’s knowledge, X ² (2, N = 101) = 15.09. p = .020. However, more heterosexual men reported that condoms were not used for sex outside the primary relationship when compared to gay/bisexual men, X ² (2, N = 101) = 14.01, p = .029. Sex outside of primary relationships presents some implications for HIV/STI prevention among Hispanic men. Because gay/bisexual men experience higher rates of HIV/STI, more attention needs to be focused on all forms of relationships to prevent acquisition of HIV/STIs. Among heterosexual Hispanic men more attention needs to be given to reinforcement of safer sex practices both outside the primary relationship, and within the primary relationship if high risk sex is occurring outside the primary relationship. More research is needed on the reasons for sex outside the primary relationship among Hispanic men, as well as research to promote safer sex practices when sex occurs outside of the primary relationship.     

A Multidisciplinary Approach to Sexual Behavior Profiles: The SEX360 Model

The diversity of sexual behaviors is driven by multiple determinants, including physiological, cultural, educational, and sociological factors. However, the definition of sexual behavior profiles has been barely addressed from a comprehensive point of view. We aimed to develop a multidisciplinary questionnaire for defining individual sexual behavior profiles. The questionnaire was developed by a panel of experts with research experience in the fields of urology, gynecology, psychology, anthropology, and sexology. The list of items was defined in a focus group session and was based on four categories—family-oriented, loving, recreational, and functional—resulting from the combination of two axes: traditional versus non-traditional and sexual benefit versus extra-sexual benefit. Real-time Delphi dynamics was used to assign a weight to each question and a bias to the corresponding responses. The final questionnaire included 50 items considered relevant for describing sexual profiles; the final questionnaire was named SEX360. Of the 50 items included in SEX360, 14 were considered essential for computing the final score; 9 of them were associated with 2 categories, 4 of them with 4 categories, and 1 of them with 3. Nine items referred to the category “family-oriented”, 10 to “loving”, 8 to “recreational”, and 9 to “functional”. The weights assigned to each question ranged from 3.00 to 4.33, and the centers of gravity ranged from 1 to 4. The questionnaire proposed shows the existence of a vast diversity of sexual behavior profiles and may serve as a tool for sexual behavior research.