48 research outputs found

    The Effects of Visual Attention Span and Phonological Decoding in Reading Comprehension in Dyslexia: A Path Analysis

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    Increasing evidence has shown visual attention span to be a factor, distinct from phonological skills, that explains single-word identification (pseudo-word/word reading) performance in dyslexia. Yet, little is known about how well visual attention span explains text comprehension. Observing reading comprehension in a sample of 105 high school students with dyslexia, we used a pathway analysis to examine the direct and indirect path between visual attention span and reading comprehension while controlling for other factors such as phonological awareness, letter identification, short-term memory, IQ and age. Integrating phonemic decoding efficiency skills in the analytic model, this study aimed to disentangle how visual attention span and phonological skills work together in reading comprehension for readers with dyslexia. We found visual attention span to have a significant direct effect on more difficult reading comprehension but not on an easier level. It also had a significant direct effect on pseudo-word identification but not on word identification. In addition, we found that visual attention span indirectly explains reading comprehension through pseudo-word reading and word reading skills. This study supports the hypothesis that at least part of the dyslexic profile can be explained by visual attention abilities

    Gender differences in developmental links between antisocial behavior, friends' antisocial behavior and peer rejection in childhood: Results in two cultures

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    This study addressed gender differences in the developmental links among antisocial behavior, friends' anti-social behavior, and peer rejection. High and increasing, moderate, and low antisocial developmental trajectories were identified among 289 Dutch children, ages 7 to 10, and 445 French-Canadian children, ages 9 to 12. Only boys followed the high trajectory. These boys had more deviant friends and were more often rejected than other children. A minority of girls followed the moderate antisocial behavior trajectory. These girls had fewer deviant friends than moderate antisocial boys, but moderate antisocial boys and girls were equally likely to be rejected. The influence of friends and poor peer relations plays a crucial but different role in the development of antisocial behavior among boys and girls. © 2005 by the Society for Research in Child Development, Inc. All rights reserved

    Camera traps and eDNA metabarcoding to monitor weasel populations in Ohio

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    Camera traps and eDNA metabarcoding to monitor weasel populations in Ohio Abigail Buzdon1, Madison Meadows1, Masyn Ohler1, Dennis De Luca1, Catherine Dennison2, Timothy Koneval1, and Kat Krynak1 Ohio Northern University Ada, Ohio, 45810 Ohio Division of Wildlife Columbus, Ohio Globally, weasel populations are in decline, however the monitoring of populations had been largely limited to annual trapping surveys until recent years. The Ohio Division of Wildlife (ODW) has been increasing monitoring efforts to provide a more accurate estimate of population sizes and ranges of Ohio’s three native weasel species, the least weasel (Mustela nivalis), short-tailed weasel (Mustela erminea), and long-tail weasel (Mustela frenata). In collaboration with the ODW, Ohio Northern University (ONU) faculty and students are expanding these monitoring efforts with the combined use of camera traps and eDNA metabarcoding. Least weasels have historically been documented at ONU’s Tidd-Oakes Farm (TOF; Hardin Co.), but not since 2005. In 2023, we deployed our first camera trap at TOF, with plans to expand to three traps this spring. ODW is currently monitoring numerous camera traps across the state. Camera trap images are downloaded and soil samples surrounding the traps are collected for eDNA processing. Organism images captured by the camera traps are identified to Genus, and species when possible. To date, while we have not captured weasel images at TOF, we have documented eastern gray squirrels (Sciurus carolinensis), chipmunks (Tiamas striatus), mice (Peromyscus sp.), shrew (Sorex cinereus), and a curious carolina wren (Thyrothorus ludovicianus). Activity patterns have been examined for these species. From the soil samples collected, total genomic DNA will be extracted using a Quiagen DNeasy PowerMax Soil Kit. VertU primers (designed by Wang et. al 2023) will be used to target mitochondrial 12S, 16S, and COI genes amplifying 200-250bp sequences with the Illumina HiSeq X-Ten platform. VertU primers have been shown to detect ≥ 90% of vertebrates, allowing for monitoring of a broad spectrum of species including members of the Mustelidae family. In preparation for the soils sample analysis, this semester we are using tissue samples of known Mustilids collected by ODW to establish controls for our eDNA analyses. While this project is in its infancy, the combined use of camera traps and eDNA metabarcoding will provide valuable information to the state regarding Ohio’s small mammal populations

    The Intersectionality of Discrimination Attributes and Bullying Among Youth: An Applied Latent Class Analysis

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    Abstract Discrimination is commonly experienced among adolescents. However, little is known about the intersection of multiple attributes of discrimination and bullying. We used a latent class analysis (LCA) to illustrate the intersections of discrimination attributes and bullying, and to assess the associations of LCA membership to depressive symptoms, deliberate self harm and suicidal ideation among a sample of ethnically diverse adolescents. The data come from the 2006 Boston Youth Survey where students were asked whether they had experienced discrimination based on four attributes: race/ ethnicity, immigration status, perceived sexual orientation and weight. They were also asked whether they had been bullied or assaulted for these attributes. A total of 965 (78 %) students contributed to the LCA analytic sample (45 % NonHispanic Black, 29 % Hispanic, 58 % Female). The LCA revealed that a 4-class solution had adequate relative and absolute fit. The 4-classes were characterized as: low discrimination (51 %); racial discrimination (33 %); sexual orientation discrimination (7 %); racial and weight discrimination with high bullying (intersectional class) (7 %). In multivariate models, compared to the low discrimination class, individuals in the sexual orientation discrimination class and the intersectional class had higher odds of engaging in deliberate self-harm. Students in the intersectional class also had higher odds of suicidal ideation. All three discrimination latent classes had significantly higher depressive symptoms compared to the low discrimination class. Multiple attributes of discrimination and bullying co-occur among adolescents. Research should consider the co-occurrence of bullying and discrimination
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