6,533 research outputs found

    Dissociating word frequency and age of acquisition: The Klein effect revived (and reversed).

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    The Klein effect (G. S. Klein, 1964) refers to the finding that high-frequency words produce greater interference in a color-naming task than low-frequency words. The present study used the Klein effect to investigate the relationship between frequency and age of acquisition (AoA) by measuring their influence on color naming. Two experiments showed reliable effects of frequency (though in the opposite direction to that reported by Klein) but no effects of AoA. Experiment 1 produced a dissociation between frequency and AoA when manipulated orthogonally. Experiment 2 produced the same dissociation using different stimuli. In contrast, both variables reliably influenced word naming. These findings are inconsistent with the view that frequency and AoA are 2 aspects of a single underlying mechanism

    Topological Foundations of Cognitive Science

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    A collection of papers presented at the First International Summer Institute in Cognitive Science, University at Buffalo, July 1994, including the following papers: ** Topological Foundations of Cognitive Science, Barry Smith ** The Bounds of Axiomatisation, Graham White ** Rethinking Boundaries, Wojciech Zelaniec ** Sheaf Mereology and Space Cognition, Jean Petitot ** A Mereotopological Definition of 'Point', Carola Eschenbach ** Discreteness, Finiteness, and the Structure of Topological Spaces, Christopher Habel ** Mass Reference and the Geometry of Solids, Almerindo E. Ojeda ** Defining a 'Doughnut' Made Difficult, N .M. Gotts ** A Theory of Spatial Regions with Indeterminate Boundaries, A.G. Cohn and N.M. Gotts ** Mereotopological Construction of Time from Events, Fabio Pianesi and Achille C. Varzi ** Computational Mereology: A Study of Part-of Relations for Multi-media Indexing, Wlodek Zadrozny and Michelle Ki

    Health Care for Our Troubled Youth: Provision of Services in the Foster Care and Juvenile Justice Systems of California

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    Lack of access to high quality health care is a problem for most low-income people, but especially for young people in foster care and the juvenile justice system. Furthermore, adolescence is a particularly difficult developmental stage for youth, one requiring special emphasis on health care provision. The lack of adequate early intervention into the wide ranging health needs of many youths contributes to longer stays in foster care and deeper involvement in the juvenile justice system. The purpose of this report is to outline the health care needs and obstacles to health care access for foster care and juvenile justice youths, particularly adolescents, and to make recommendations for improvement

    Individual differences in adult handwritten spelling-to-dictation

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    We report an investigation of individual differences in handwriting latencies and number of errors in a spelling-to-dictation task. Eighty adult participants wrote a list of 164 spoken words (presented in two sessions). The participants were also evaluated on a vocabulary test (Deltour, 1993). Various multiple regression analyses were performed (on both writing latency and errors). The analysis of the item means showed that the reliable predictors of spelling latencies were acoustic duration, cumulative word frequency, phonology-to-orthographic (PO) consistency, the number of letters in the word and the interaction between cumulative word frequency, PO consistency and imageability. (Error rates were also predicted by frequency, consistency, length and the interaction between cumulative word frequency, PO consistency and imageability.) The analysis of the participant means (and trials) showed that (1) there was both within- and between-session reliability across the sets of items, (2) there was no trade-off between the utilization of lexical and non-lexical information, and (3) participants with high vocabulary knowledge were more accurate (and somewhat faster), and had a differential sensitivity to certain stimulus characteristics, than those with low vocabulary knowledge. We discuss the implications of these findings for theories of orthographic word production

    Youth Violence Myths and Realities: A Tale of Three Cities

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    A study of media coverage of youth violence, actual crime data, and interviews with committed youth and the professionals that work with them

    A New Era in California Juvenile Justice

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    Behind the media and political attention focused on California prisons, which are plagued with severe levels of crowding, and a federal court order to reduce the inmate population by over 40,000, lies one of California's best-kept secrets: the state's youth correctional custodial population has declined over 80% in just over the past decade. Just since 2004 the California Youth Authority (CYA) population declined by over 5,000 inmates. The state has already closed five major juvenile facilities and four forestry camps for juvenile offenders.A number of factors have contributed significantly to the drop in the population of the CYA. The most frequently cited is the very negative media publicity in the early 2000s about the conditions inside facilities, the case of Farrell v. Harper in 2003, and realignment legislation passed in 2007 that required that more youthful offenders be managed at the county level. However, the CYA population began declining as early as 1997. The trend towards increased costs for counties to send youth to the CYA, and doubt that the CYA was an appropriate setting for many of the youth being sent there, had already begun in the late 1990s.While no single factor accounts for the drastic change in the CYA population, the research presented here points to multiple forces that came together in the mid- to late-1990s and early 2000s to change public perception, judicial behaviors, probation programs, sentencing policies, and state funding streams.We also find that this population reduction is particularly notable because it did not result in an increase in juvenile crime, as some had erroneously predicted

    GDP & Beyond – die europäische Perspektive

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    Earnings nonresponse in the Current Population Survey is roughly 30% in the monthly surveys and 20% in the annual March survey. Even if nonresponse is random, severe bias attaches to wage equation coefficient estimates on attributes not matched in the earnings imputation hot deck. If nonresponse is ignorable, unbiased estimates can be achieved by omitting imputed earners, yet little is known about whether or not CPS nonresponse is ignorable. Using sample frame measures to identify selection, we find clear-cut evidence among men but limited evidence among women for negative selection into response. Wage equation slope coefficients are affected little by selection but because of intercept shifts, wages for men and to a lesser extent women are understated, as are gender wage gaps. Selection is less severe among household heads/co-heads than among other household members.response bias, imputation, earnings nonresponse, gender gap, CPS

    A reconnaissance of the intersex condition in Micropterus dolomieu of the Upper Ohio River Basin as an indicator of anthropogenic endocrine disruptors

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    The intersex condition has been used as a marker of endocrine disruption in West Virginia. Fifty-two male smallmouth bass from 6 basins on the upper Ohio River were examined for the presence and severity of intersex. Vitellogenin (VTG) RNA levels were quantified as marker of estrogenic contaminants. A significant increase in intersex (p=0.02), ranging from 83.3% to 100%, corresponds with higher population densities and agricultural land (p=0.003). At reference sites, smallmouth bass had intersex frequencies of 16.7% to 33.3%. Vitellogenin results were significantly lower (p\u3c 0.001) at impacted sites, consistent with previously reported results in female fish. VTG levels in males were not significantly different. Increased intersex occurrence in males and lowered VTG expression in females have shown that agricultural chemicals and common residential wastewater constituents are likely targets for exploring the relationship between individual EDCs and intersex. There may be a natural background level of the intersex condition

    The Extravagance of Imprisonment Revisited

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    This report analyzes prison and jail populations in the US as a whole and in four key states -- California, Florida, New York, and Texas -- to determine 1) how many prisoners are nonserious offenders and what it costs to lock them up, 2) what proven effective alternatives are in use and what they cost, and 3) what savings could be realized if a portion of the nonserious offenders were sentenced to alternatives instead of prison and jail
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