Construct redundancy in leader behaviors: A review and agenda for the future

Leadership remains a popular and heavily researched area in the social sciences. Such popularity has led to a proliferation of new constructs within the leadership domain. Here, we argue that such construct proliferation without pruning is unhealthy and violates the principle of parsimony. Our purpose was to examine construct redundancy via a comprehensive review of task-oriented, relational, passive, and inspirational leader behaviors as well as values-based and moral leadership behaviors. Our findings, as indexed via meta-analytic correlations, reveal that construct redundancy remains problematic for the leadership literature. In addition, many of the values-based and moral behavior models correlated heavily with constructs traditionally examined as outcome variables (e.g., trust, LMX, justice). Implications for future research are discussed in regards to construct redundancy and how to avoid endogeneity bias in primary studies in the leadership literature.     

Teaching Note—Teaching Self-Care and Wellness as a Professional Practice Skill: A Curricular Case Example

Educating for human rights and justice requires attention to the well-being of those being prepared to pursue these aims. This article describes an MSW program’s implementation of teaching self-care as a core practice skill. This curricular innovation stems from the increasing literature documenting the deleterious effects of burnout in professional helping and the need to address this concern in educational curricula. Further, this curricular change is a result of increased student exhaustion affecting academic performance and professional preparedness, and the ethical imperative to address this phenomenon. We describe specific components, strategies, and assignments in the curriculum as well as assessment of the curricular innovation. This curricular example is readily adaptable for other programs.     

Is “Sexual Competence” at First Heterosexual Intercourse Associated With Subsequent Sexual Health Status?

The timing of first sexual intercourse is often defined in terms of chronological age, with particular focus on “early” first sex. Arguments can be made for a more nuanced concept of readiness and appropriateness of timing of first intercourse. Using data from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3), conducted in 2010–2012, this study examined whether a context-based measure of first intercourse—termed sexual competence—was associated with subsequent sexual health in a population-based sample of 17-to 24-year-olds residing in Britain (n = 2,784). Participants were classified as “sexually competent” at first intercourse if they reported the following four criteria: contraceptive protection, autonomy of decision (not due to external influences), that both partners were “equally willing,” and that it happened at the “right time.” A lack of sexual competence at first intercourse was independently associated with testing positive for human papillomavirus (HPV) at interview; low sexual function in the past year; and among women only, reported sexually transmitted infection (STI) diagnosis ever; unplanned pregnancy in the past year; and having ever experienced nonvolitional sex. These findings provide empirical support for defining the nature of first intercourse with reference to contextual aspects of the experience, as opposed to a sole focus on chronological age at occurrence.     

Mental Health Knowledge Gaps in the Child Protection Work with Parents: A Narrative Review of the Social Work Literature

This is a narrative review of the latest peer-reviewed social work literature on the child protection work with parents. Aiming to identify knowledge gaps, the study researches the mental health aspects of the implicit or explicit theoretical perspectives underpinning the assessment and intervention with parents. An electronic database search extracted 38 peer-reviewed journal articles. It was found that the theoretical perspectives the publications adopted were the managerial, the critical, the humanistic, the psychodynamic and the behavioural. The study identified mental health knowledge gaps in the assessment and intervention work with parents across all theoretical perspectives and stressed the need for process and effectiveness studies on the work with parents, under explicit theoretical perspectives. The study finally highlights the need for the social work profession to increase its mental health literacy through mental health education for students and practitioners alike.     

Impact of child health and disability on subsequent maternal fertility

The prevalence of chronic conditions among children has been rising in the past four decades. Despite the policy relevance and plausible mechanisms through which child disability and severe early life health conditions can impact subsequent maternal reproductive behavior, there has been limited investigation of this question particularly in the US. Child disability or severe early life health problems such as very preterm birth (VPTB) and very low birth weight (VLBW) can constrain household resources to have another child but may also increase parental demand for healthy children and modify allocation of resources between children. Empirical assessment of this question is complicated by unobservables such as maternal health and preferences. We examine whether giving birth to a child with disabilities or severe adverse birth outcomes including VPTB and VLBW impacts subsequent maternal fertility. We employ a mother fixed-effect duration model for maternal fertility over time as a function of the proportion of previously born children with disabilities/health conditions in order to account for time-invariant unobservables, using merged data from the 1993 National Health Interview Survey and 1995 National Survey of Family Growth. We find no evidence that having disabled children reduces subsequent live births when using the mother fixed-effect model, in contrast to the classical model using within and between mother variation which suggests a fertility decline. Similarly, we find no evidence that having VPTB or VLBW children reduces fertility. Overall, our findings indicate no impact of child disability or health conditions on subsequent maternal fertility. Additional analyses excluding women who may qualify for AFDC show overall a similar pattern of results, suggesting that the findings may be generalizable post the AFDC. Time-varying unobservables may still be at work, but they likely result in an opposite (negative) bias toward reduction in fertility.     

Piecewise Cox models with right-censored data

We study a general class of piecewise Cox models. We discuss the computation of the semi-parametric maximum likelihood estimates (SMLE) of the parameters, with right-censored data, and a simplified algorithm for the maximum partial likelihood estimates (MPLE). Our simulation study suggests that the relative efficiency of the PMLE of the parameter to the SMLE ranges from 96% to 99.9%, but the relative efficiency of the existing estimators of the baseline survival function to the SMLE ranges from 3% to 24%. Thus, the SMLE is much better than the existing estimators.     

A NOTE ON THE ASSESSMENT OF THE RESULTS IN A DISCRIMINANT ANALYSIS *

This paper describes two statistical measures that can be applied to the analysis of the results in a discriminant analysis. These measures, similar to R² and R² in multiple regression, assess the “goodness of fit” of the model or the degree of separation established by the discriminant functions among the groups in the sample and in the population.