What Happens When There Is Presumptive 50/50 Parenting Time? An Evaluation of Arizona’s New Child Custody Statute

ABSTRACT

The current study presents the findings of an evaluation of Arizona’s 2013 revisions to the child custody statutes that directed courts to “maximize” the child’s parenting time with both parents. A state-wide survey of the four family law professions (i.e., conciliation court staff, judges, mental health providers, and attorneys) assessed their perceptions of the law 4 years after implementation. We averaged the ratings across the four professions to obtain a comprehensive perspective that gave equal weight to each profession. Results revealed that the law functions as a rebuttable presumption of equal parenting time; that it is evaluated positively overall and in terms of children’s best interests; that it is has a neutral impact on legal and interparental conflict; and that it has led to small increases in allegations of domestic violence, child abuse, and substance abuse.     

Hybrid Strategies: Allocating Involvement in the Digital Age

An important trait of mobile phones is their capacity to superimpose multiple social interactions in time and space. Little research examines how individuals choose between face‐to‐face and digitally mediated interactions in specific social contexts. Drawing upon focus group interviews with a diverse sample of university students in the United States, we argue that, contrary to a perspective that is popular in theory and journalistic commentary, mobile phone users do not experience the digital and the face‐to‐face as distinct realms. In deciding where to direct their attention, users enmesh the distant and the present, making moves that are expressive and strategic in their own right that reveal the interest, intimacy and urgency that users place in multiple, coinciding social involvements.     

Could mild hypoxia impair pilot decision making in emergencies?

The decreased pressure in the cabin of a pressurised aircraft (typically equivalent to ~8000 ft) reduces the oxygen level so that the blood oxygen saturation of all occupants falls from >97% (normoxia) at sea-level to below 92% (mild hypoxia). Although exposure to mild hypoxia does not affect well-learned cognitive and motor performance of aircrew, it has been proposed that it can affect the performance of some complex cognitive performance tasks involving multiple demands typical of emergency tasks that may have to be performed by pilots. In order to simulate some of these complex cognitive demands, 25 student volunteers participated in an experiment which assessed performance of complex logical reasoning and and multiple memory tasks before and after 2 hours of exposure to normoxia and mild hypoxia. Performance for the more difficult components of the complex reasoning task, especially involving conflict decisions, were marginally significantly degraded by mild hypoxia. Since the effects were only marginally significant future studies should investigate the effects of mild hypoxia on more subtle complex decision-making tasks.     

The use of a single pseudo-sample in approximate Bayesian computation

We analyze the computational efficiency of approximate Bayesian computation (ABC), which approximates a likelihood function by drawing pseudo-samples from the associated model. For the rejection sampling version of ABC, it is known that multiple pseudo-samples cannot substantially increase (and can substantially decrease) the efficiency of the algorithm as compared to employing a high-variance estimate based on a single pseudo-sample. We show that this conclusion also holds for a Markov chain Monte Carlo version of ABC, implying that it is unnecessary to tune the number of pseudo-samples used in ABC-MCMC. This conclusion is in contrast to particle MCMC methods, for which increasing the number of particles can provide large gains in computational efficiency.     

Social Self‐Control,Externalizing Behavior,and Peer Liking Among Children with ADHD‐CT: A Mediation Model

This study investigated the role of externalizing behavior as a mediator of the relation between social self‐control and peer liking among children with attention‐deficit/hyperactivity disorder‐combined type (ADHD‐CT). A model was proposed whereby externalizing behavior would fully statistically account for the direct relation of social self‐control to peer liking. One hundred seventy‐two children ages 7.0–9.9 years with ADHD‐CT were rated by their teachers regarding their social self‐control and by their parents and teachers regarding their rates of externalizing behavior. Same‐sex classmates provided ratings of overall liking. Structural equation modeling was used to assess the proposed model. Results supported the proposed model of externalizing behavior as fully statistically accounting for the relation of social self‐control to peer liking. This study demonstrated the crucial role that externalizing behaviors play in the social impairment commonly seen among children with ADHD‐CT.     

Trying to make race science the “civil” science: charisma in the race and intelligence debates

Theory and Society - When studying science contexts, scholars typically position charismatic authority as an adjunct or something that provides a meaning-laden boost to rational authority. In this...     

Nonwork Influences on Withdrawal Cognitions: An Empirical Examination of an Overlooked Issue

The aim of this research is to examine severaldimensions of nonwork domains such as nonwork-to-workspillover, work/nonwork conflict, coping strategies, andorganizational support for nonwork, and their relationship to withdrawal cognitions.Questionnaires were mailed to all employees of a schooldistrict in western Canada. A total of 300 usablequestionnaires were returned: a response rate of 42%. The findings show that nonwork domain variables aresignificantly related to withdrawal cognitions. This wasdemonstrated mainly in two strong interaction effectsbetween the importance of nonwork and personal coping strategies on the one hand, and betweenthe importance of nonwork and perceived organizationalsupport for nonwork on the other. The two interactionsremain significant when two work variables, i.e., organizational commitment and job satisfaction,were entered into the regression as control variables.The paper concludes with proposed directions for futureresearch based on the findings of this present work.     

Small Area Estimation via Multivariate Fay–Herriot Models with Latent Spatial Dependence

The Fay–Herriot model is a standard model for direct survey estimators in which the true quantity of interest, the superpopulation mean, is latent and its estimation is improved through the use of auxiliary covariates. In the context of small area estimation, these estimates can be further improved by borrowing strength across spatial regions or by considering multiple outcomes simultaneously. We provide here two formulations to perform small area estimation with Fay–Herriot models that include both multivariate outcomes and latent spatial dependence. We consider two model formulations. In one of these formulations the outcome‐by‐space dependence structure is separable. The other accounts for the cross dependence through the use of a generalized multivariate conditional autoregressive (GMCAR) structure. The GMCAR model is shown, in a state‐level example, to produce smaller mean square prediction errors, relative to equivalent census variables, than the separable model and the state‐of‐the‐art multivariate model with unstructured dependence between outcomes and no spatial dependence. In addition, both the GMCAR and the separable models give smaller mean squared prediction error than the state‐of‐the‐art model when conducting small area estimation on county level data from the American Community Survey.