Charter School Enrollment Effects: A Review of Results from Recent Large-Scale Studies

Responding to calls for increased accountability regarding performance of students in public schools and concerns over the capacity of public schools to improve outcomes, school choice has become a mainstream and often controversial issue in public education; it is also a priority of the current federal government administration. Given the mixed evidence of effects on academic performance of charter school enrollment, along with the common perception that charter schools fail to meet the needs of special populations of students—including students with disabilities and English language learners (ELLs)—this study examined the performance of these subgroups across traditional public schools and charter schools. Specifically, we reviewed five recent large-scale studies that assess the impact of charter schools on academic performance paying particular attention to how students with disabilities and students identified as ELLs fare in charter schools relative to their peers served in traditional district schools.     

Prereaders’ eye movements during shared storybook reading are language-mediated but not predictive

When viewing a visual scene, eye movements are often language-mediated: people look at objects as those objects are named. Eye movements can even reflect predictive language processing, moving to an object before it is named. Children are also capable of making language-mediated eye movements, even predictive ones, and prediction may be involved in language learning. The present study explored whether eye movements are language-mediated in a more naturalistic task – shared storybook reading. Research has shown that children fixate illustrations during shared storybook reading, ignoring text. The present study used high-precision eye-tracking to replicate this finding. Further, prereader participants showed increased likelihood of fixating relevant storybook illustrations as words were read aloud, indicating that their eye movements were language mediated like the adult participants. Language-mediated eye movements to illustrations were reactive, not predictive, in both participant groups.     

The Low and Narrow: A Preliminary Test of the Association Between Depressive Symptoms and Deficits in Producing Divergent Inferences

Depression is associated with biased interpretations and beliefs that are resistant to change. This kind of cognitive rigidity may depend on two distinct factors—a reduced ability for processing information that conflicts with these interpretations and beliefs and a reduced ability for generating alternative representations. Although depressive symptoms are typically not associated with deficits in common divergent thinking tasks, these tasks may not be sensitive or specific enough to detect the rigid cognition associated with depression. Accordingly, a novel task was developed to assess divergent thinking in line with the level of construal and thematic contents typical of depressive cognition (the Divergent Inference Task—DIT). In a preliminary investigation using a nonclinical sample, depressive symptoms were correlated with deficits in producing divergent interpretations for realistic scenarios using the DIT. This finding may represent an important psychological mechanism that contributes to the persistence of biased interpretations and beliefs in depression.     

Dislocation multiplication in bcc molybdenum: A dislocation dynamics simulation

Plastic deformation of Mo single crystals is examined by direct simulation of dislocation dynamics under stress. Initial dislocation populations are made to mimic real dislocation microstructures observed in transmission electron microscopy cross-sections of pure annealed Mo single crystals. No a priori sources for dislocation multiplication are introduced, and yet multiplication takes place through a sequence involving aggregation of grown-in superjogs, bowing of screw dislocation segments and fast lateral motion of edge segments, producing a large number of elongated loops and a characteristic cross-grid pattern of screw dislocations.     

Differentiated associations between childhood maltreatment experiences and social understanding: A meta-analysis and systematic review

The extreme parenting experiences encountered by children who are physically abused or neglected place them at increased risk for impaired socio-emotional development. There is growing evidence that maltreated children may apprehend interpersonal encounters in different ways from children without such traumatic histories. This systematic review examines the links between childhood physical abuse and neglect and various constituent skills of social understanding (including emotion recognition and understanding, perspective taking, false belief understanding, and attributional biases) in 51 empirical studies. The review incorporates a meta-analysis of 19 studies on emotion recognition and understanding in this population. This showed an overall negative effect of maltreatment, but moderation analyses revealed that significantly stronger effects were found for measures of emotion understanding rather than recognition, and for younger rather than older age groups. The broader review also reveals a complex and differentiated profile of social understanding among maltreated children. Directions for future research that addresses individual differences in children’s experiences, both within and outside the maltreatment context, are discussed.