Multilevel modelling of survey data: impact of the two-level weights used in the pseudolikelihood

Approaches that use the pseudolikelihood to perform multilevel modelling on survey data have been presented in the literature. To avoid biased estimates due to unequal selection probabilities, conditional weights can be introduced at each level. Less-biased estimators can also be obtained in a two-level linear model if the level-1 weights are scaled. In this paper, we studied several level-2 weights that can be introduced into the pseudolikelihood when the sampling design and the hierarchical structure of the multilevel model do not match. Two-level and three-level models were studied. The present work was motivated by a study that aims to estimate the contributions of lead sources to polluting the interior floor dust of the rooms within dwellings. We performed a simulation study using the real data collected from a French survey to achieve our objective. We conclude that it is preferable to use unweighted analyses or, at the most, to use conditional level-2 weights in a two-level or a three-level model. We state some warnings and make some recommendations.     

Migration of Retirement‐Age Blacks to Nonmetropolitan Areas in the 1990s

Older blacks migrated to nonmetropolitan (nonmetro) communities in the 1990s to a degree not true of the past. Some of the nonmetro counties that attracted them are well‐known retirement areas also favored by other retirees, mostly whites. Two‐thirds of black retirement counties, however, are areas in the Old South that are not attracting other retirees at a substantial rate, if at all. Although the data indicate significant rates of retirement‐age blacks migrating to 85 nonmetro counties, most migration by older blacks is to metro destinations.     

Social Justice in Career Services: Perspectives of University Career Center Directors

Research indicates that career development practitioners value social justice and desire additional skills to be able to advocate effectively. Many of these practitioners work on college campuses under the supervision of career center directors; however, directors' perspectives on social justice have been missing from the literature. Following the National Career Development Association's mandate to actively practice the professional value of honoring diversity and promoting social justice, we surveyed 11 career center directors regarding advocacy in career services. Results of thematic analysis yielded center directors' insights into both defining and promoting social justice. Participants addressed the roles and responsibilities of career counselors, career center directors, and institutional culture. Implications for practice include the importance of open communication and the need for collaboration inside and outside of the career center. These findings highlight potential areas for future research into best practices for integrating social justice and advocacy in university career services.     

A BINAR(1) time-series model with cross-correlated COM–Poisson innovations

This article proposes a bivariate integer-valued autoregressive time-series model of order 1 (BINAR(1) with COM–Poisson marginals to analyze a pair of non stationary time series of counts. The interrelation between the series is induced by the correlated innovations, while the non stationarity is captured through a common set of time-dependent covariates that influence the count responses. The regression and dependence effects are estimated using generalized quasi-likelihood (GQL) approach. Simulation experiments are performed to assess the performance of the estimation algorithms. The proposed BINAR(1) process is applied to analyze a real-life series of day and night accidents in Mauritius.     

Domain Specificity in Adolescents’ Concepts of Laws: Associations Among Beliefs and Behavior

Using detailed vignettes and scale measures, concepts of laws regulating domain‐specific issues and engagement in delinquency were assessed among 340 9th through 12th graders (M_age = 16.64, SD = 1.37). Adolescents distinguished between laws that regulate moral, drug‐related prudential, conventional, personal, and multifaceted issues in their criterion judgments and justifications. Youths’ ratings of the importance of laws, obligation to obey laws, and deserved punishment for breaking different laws also followed domain‐consistent patterns. Adolescents’ engagement in moral, drug‐related prudential, and multifaceted forms of delinquency was associated with less supportive judgments about laws within the same domain. Findings contribute to civic development research by demonstrating domain specificity in adolescents’ beliefs about laws and suggest that these beliefs are linked with engagement in similar types of delinquency.     

Developing a Brief Suicide Prevention Intervention and Mobile Phone Application: A Qualitative Report

Suicide is the second leading cause of death among youth and has become a serious public health problem. There has been limited research on strategies to decrease the likelihood of reattempt in adolescents. As phase one of a treatment development study, clinicians, parents, and adolescents participated in qualitative interviews in order to gain new perspectives on developing a targeted intervention and a safety plan phone application for suicide prevention. Participants indicated that transition of care, specific treatment targets, and safety planning were important parts of treatment. In addition, all participants endorsed the use of a smartphone application for these purposes.     

Toddler Emotion Regulation With Mothers and Fathers: Temporal Associations Between Negative Affect and Behavioral Strategies

The present study investigated temporal associations between putative emotion regulation strategies and negative affect in 20‐month‐old toddlers. Toddlers’ parent‐focused, self‐distraction, and toy‐focused strategies, as well as negative affect, were rated on a second‐by‐second basis during laboratory parent–toddler interactions. Longitudinal mixed‐effects models were conducted to determine the degree to which behavioral strategy use predicts subsequent negative affect and negative affect predicts subsequent strategy use. Results with mother–toddler and father–toddler dyads indicated that parent‐focused strategies with an unresponsive parent were followed by increases in negative affect, whereas toy‐focused strategies were followed by decreases in negative affect. Results also indicated that toddler negative affect serves to regulate behavioral strategy use within both parent contexts.