Playing the Recording Once or Twice: Effects on Listening Test Performances

Much debate surrounds the issue of whether allowing candidates to listen to recordings twice is more desirable in language tests than offering just one opportunity. Using regression models, this study investigates, analyses and interconnects both item difficulty and stimulus length in relation to the frequency of stimulus presentation and its effect on test results. The study involved 1,266 eighth-grade learners with perceived A2/B1 level in English as a first foreign language. The final discussion seeks to offer explanations for the results that clearly indicate the advantages of listening once; likewise, potential implications for listening tests and classroom practice are raised.     

‘Our young people are worse’: family backgrounds,educational progression and placement options in public care systems

Introducing continental European approaches to UK child welfare practice raises a problem of comparison: to what extent are the problems and issues similar to or different from one country compared to another. Social pedagogues trained in continental Europe and working in English residential care services often encountered the phrase ‘our young people are worse’ from their English colleagues, with the implication that the social pedagogic approach was not suitable for the client group. This paper examines two propositions: (1) that in the context of introducing the continental European approach of social pedagogy into children's residential care services in England, young people are ‘different’ in England compared to other European countries and (2) that the placement options and practices for young people living away from their birth parents in continental European countries differ from those in England. Using data from a five nation study of young people from public care backgrounds, the paper argues that while family backgrounds are remarkably similar there are marked differences in the child welfare systems that might account for the perception that young people in care are ‘worse’ in England.     

Marital and Cohabitation Dissolution and Parental Depressive Symptoms in Fragile Families

The consequences of divorce are pronounced for parents of young children, and cohabitation dissolution is increasing in this population and has important implications. The mental health consequences of union dissolution were examined, by union type and parental gender, using the Fragile Families and Child Wellbeing Study (n= 1,998 for mothers and 1,764 for fathers). Overall, cohabitation and marital dissolution were both associated with increased maternal and paternal depressive symptoms, though for married mothers, depressive symptoms returned to predissolution levels with time. Difference‐in‐difference estimates indicated no differences in the magnitude of the increase in depressive symptoms by type of dissolution, though pooled difference models suggested that married fathers increased in depressive symptoms more than cohabiting fathers. Potential time‐variant mediators did not account for these associations, though greater family chaos was associated with increased maternal depressive symptoms, and decreased social support and father–child contact were associated with increased paternal depressive symptoms.     

Siblings in lockdown: International evidence for birth order effects on child adjustment in the Covid19 pandemic

Supportive family relationships may mitigate the impact of the Covid19 pandemic on young children's adjustment, but existing work is limited by its focus on within-country variation and parental influences. Addressing these gaps, and drawing on reported buffering effects of older siblings on child mental health (Lawson and Mace, 2010), the current international study examined whether child adjustment problems were, on average, elevated by the pandemic and whether this buffering effect of older siblings would be maintained. In the first wave of the Covid19 pandemic (April to July 2020), 2516 parents of 3- to 8-year-old children living in Australia, China, Italy, Sweden, United Kingdom, and United States of America—six countries with contrasting governmental responses to the pandemic—completed an online survey about family experiences and relationships and child adjustment, as indexed by ratings on the Strengths and Difficulties Questionnaire (SDQ: R. Goodman, 1997). As expected, child SDQ total difficulty scores were elevated in all sites except Sweden (which notably did not enforce mass school closures). Compared to children without siblings, children with one or more older siblings showed fewer adjustment problems. Children from lone-parent households displayed more adjustment problems, as did those whose parents reported increased sibling conflict. Finally, child adjustment problems were negatively associated with family socio-economic status, but positively related to the indices of Covid-19 family disruption and government stringency. We discuss these findings in relation to existing work on asymmetric effects of older versus younger siblings, and siblings as sources of support.     

EXCLUSION AND REINTEGRATION IN A SOCIAL DILEMMA

Using a social dilemma game, we study the cooperative behavior of individuals who reintegrate their group after being excluded by their peers. We manipulate the length of exclusion and whether this length is imposed exogenously or results from a vote. We show that people are willing to exclude the least cooperators and they punish more, and more severely, chronic defections. In return, a longer exclusion has a higher disciplining effect on cooperation after reintegration, but only when the length of exclusion is not chosen by group members. Its relative disciplining effect on cooperation after reintegration is smaller when the length of exclusion results from a vote. In this environment, a quicker reintegration also limits retaliation. The difference in the impact of long versus short exclusion on retaliation is larger when the length of exclusion is chosen by group members than when it is exogenous. Post-reintegration cooperation and forgiveness depend not only on the length of exclusion but also on the perceived intentions of others when they punish. (JEL C92, H41, D23)     

A breakpoint detection in the mean model with heterogeneous variance on fixed time intervals

Statistics and Computing - This work is motivated by an application for the homogenization of global navigation satellite system (GNSS)-derived integrated water vapour series. Indeed, these series...