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Twenty-six suicide attempters, 9 to 18 years of age, were compared with 725 nonattempters on measures of school achievement, educational goals, socioeconomic status, and depression. As has been found in studies using clinical samples, suicide attempters in our communitybased sample had significantly lower school achievement than nonattempters. The relationship between attempted suicide and low school achievement seemed to be explained by the effects of depression. Lower-SES youth tended to be more likely to attempt suicide than higher-SES youths. However, SES appeared to have little effect on the relationship between attempted suicide and school achievement. Results also suggest that children of mothers with low educational goals for them may be more at risk for attempted suicide than youths whose mothers have higher educational goals for their children.This research was supported by the National Institute of Mental Health, Grant No. MH36971.  相似文献   
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Guideline sentencing systems, including the new federal guidelines, have not settled on a clear conception of when and how a trial judge should explain sentences. Indeterminate sentencing systems did not have a tradition of written sentencing decisions and recent sentencing reforms do not focus on the trial judge's role. This article suggests the many advantages of written sentencing opinions. Initial experience under the federal sentencing guidelines bolsters the conclusion that written sentencing opinions in appropriate cases—including both sentences “within” guidelines and guideline “departures”—are the next step in the evolving law of sentencing and the best way to recognize trial judges as an essential engine of principled change.  相似文献   
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Although current theories of memory emphasize the fact that learning is an active process, there is little consensus on the role of active learning. This paper attempts to provide a more precise characterization of active learning in the acquisition of computer skills. The analysis of verbal protocols suggests that active learning varies on at least two dimensions: schema orientation and learning strategy. Schema orientation refers to the type of information the learner is acquiring and varies from relational information to procedural information. Learning strategy describes how the information is acquired. Some people prefer to be internally driven and form their own plans for learning. Others are externally driven and allow the instructional materials to guide their learning. These differences need to be taken into account in describing learning and in designing instructional materials.  相似文献   
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Simulations of space use by animals were run to determine the relationship among home range area estimates, variability, and sample size (number of locations). As sample size increased, home range size increased asymptotically, whereas variability decreased among mean home range area estimates generated by multiple simulations for the same sample size. Our results suggest that field workers should ascertain between 100 and 200 locations in order to estimate reliably home range area. In some cases, this suggested guideline is higher than values found in the few published studies in which the relationship between home range area and number of locations is addressed. Sampling differences for small species occupying relatively small home ranges indicate that fewer locations may be sufficient to allow for a reliable estimate of home range. Intraspecific variability in social status (group member, loner, resident, transient), age, sex, reproductive condition, and food resources also have to be considered, as do season, habitat, and differences in sampling and analytical methods. Comparative data still are needed.  相似文献   
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Why use cotherapy? No justification can be found in the outcome literature, but the literature is not sufficiently sophisticated to address the issue adequately. Cotherapy might be chosen when the therapy is difficult, when role modelling is called for, or when a relationship is needed to soak up projections. It may be chosen primarily for the benefit of the therapists, though as a teaching format it has drawbacks. The relationships developed between cotherapists may be challenging and benefit from supervision. They may be understood by analogy to other relationships, e.g. marriage, and the therapeutic alliance between therapist and patient. The technical pros and cons of cotherapy call for systematic study. In general, though, a case can be made for the use of cotherapy, and for other procedures such as live supervision, as ways of influencing the therapeutic culture for the better.  相似文献   
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The way consumers behave is fundamental to marketing. Journal of Consumer Behaviour (JCB) is an international journal dedicated to publishing the latest developments of consumer behaviour. To gain an understanding of the evolution and trends in consumer behaviour, this study presents a retrospective review of JCB using bibliometric analysis. Using bibliographic records of JCB from Scopus, this study finds that consumer behaviour research in JCB has grown substantially in terms of collaboration (co-authorships), global reach (countries), productivity (publications), and impact (citations). The major themes explored by consumer behaviour research in JCB include consumer information processing, consumption communities, consumption value, sustainable consumption, intergenerational consumer behaviour, consumer-brand relationship, consumer ethics, and conditional relationships in consumer behaviour. The most recent consumer behaviour research in JCB has considered externalities such as the COVID-19 pandemic and focused on themes such as consumer ethics and sustainable consumption in line with the global movement toward environmental social governance (ESG) and sustainable development goals (SDGs).  相似文献   
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