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Acquisition of matching to sample via mediated transfer   总被引:9,自引:9,他引:0       下载免费PDF全文
Two severely retarded Down's-syndrome boys learned a matching-to-sample performance through mediated transfer. The transfer paradigm involved three sets of stimuli, one auditory set (A) and two visual sets (B and C). The subjects were taught directly to do B-A and C-B matching, but experienced no direct association between C and A. They acquired the ability to do C-A matching without having been taught that performance directly. They also learned indirectly to name some of the visual stimuli, but naming was apparently not the mediator in the emergent C-A matching. The use of words and letters as stimuli highlighted the possible relevance of mediated associations in the indirect acquisition of elementary reading comprehension and oral reading. The acquisition of matching via mediated transfer also raised some new considerations concerning the role of coding responses in arbitrary matching to sample.  相似文献   
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Families in which one or more members are undocumented immigrants experience unique hardships. Yet, little is known about stress and substance use among adolescents growing up in these families. The present study examined associations between two sources of adolescent stress (i.e., low parental involvement due to contextual constraints and family economic insecurity) and lifetime alcohol, cigarette, and marijuana use among adolescents in families with undocumented members. The sample was comprised of 102 adolescents (10–18 years old) and one of his or her parents. Participants responded a survey in English or Spanish. Adolescent lifetime use of alcohol, cigarette, and marijuana was 51, 32.4, and 37.3 %, respectively. Chi-square analyses found no significant gender differences in lifetime substance use. Logistic regression models showed that adolescent stress due to hindered parental involvement increased the odds of both lifetime cigarette and marijuana use after controlling for gender, age, linguistic acculturation, familism, parental control, and negative peer affiliation. Being a girl increased the odds of lifetime alcohol use. Family economic stress was not associated with lifetime substance use. Results suggest that hindered parental involvement might be a stressor and a risk factor for cigarette and marijuana use among adolescents growing up in families with undocumented members. Because parents in these families are likely to be undocumented, policies that allow immigrants to apply for legal status could improve parents’ working conditions and facilitate parental involvement; in turn, such policies could decrease the risk for adolescent substance use among children of Latino immigrants.  相似文献   
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An undergraduate liberal arts education can help students be not simply shaped by tradition but also shapers of tradition. Specifically, undergraduate theological education, aimed at ministry preparation in a liberal arts setting, can seek to graduate students who are responsible shapers of the traditions that shape them, that is, who are tradents. The work of a tradent involves active engagement that requires skills and capacities well beyond simply passing on the past formulations of a tradition. The pedagogical question, then, is how to engage in undergraduate theological education if this image of the tradent is what we have in mind for our students. Three aspects of this image can serve as pervasive or recurrent themes across the structure of a major or program. One aspect is the interpretive nature of the tradent's work, a second is facility with traditions, and a third is the creative, constructive work of thinking theologically. Whatever particular traditions characterize a department's context, the image of students as tradents can help focus pedagogical reflection on the department's work: teaching students as shapers of the traditions that shape them.  相似文献   
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Research since the 1960s has consistently found that lay volunteers are better at helping suicidal callers than professionals. Yet, professional degrees are increasingly becoming requirements for helpline workers. In our first study, we conducted post hoc comparisons of U.S. helplines with all professional paid staff, all lay volunteers, and a mix of both, using silent monitoring and standardized assessments of 1,431 calls. The volunteer centers more often conducted risk assessments, had more empathy, were more respectful of callers, and had significantly better call outcome ratings. A second study of five Quebec suicide prevention centers used silent monitoring to compare telephone help in 1,206 calls answered by 90 volunteers and 39 paid staff. Results indicate no significant differences between the volunteers and paid employees on outcome variables. However, volunteers and paid staff with over 140 hours of call experience had significantly better outcomes. Unlike the United States, Quebec paid employees were not required to have advanced professional degrees. We conclude from these results and previous research that there is no justification for requiring that suicide prevention helpline workers be mental health professionals. In fact, the evidence to date indicates that professionals may be less effective in providing telephone help to suicidal individuals when compared to trained lay volunteers.  相似文献   
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Infidelity has a permeating impact on social systems, but no system is more impacted by infidelity than the nuclear family. This paper examines the impact of parental infidelity on the family using a structural family therapy (SFT) framework. Conceptualizing and treating infidelity from an SFT approach provides a systemic understanding of how interactions between the parental units about infidelity impact parent–child dynamics. Clinical recommendations are outlined for couple and family therapists to help families find healthy and adaptable ways to create and maintain structures that minimize the harmful impact of infidelity on the family system.  相似文献   
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