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461.
The purpose of this study was to investigate which social groups are perceived as a threat target and which are perceived as a threat source during the COVID-19 outbreak. In a German sample (N = 1454) we examined perceptions of social groups ranging from those that are psychologically close and smaller (family, friends, neighbors) to those that are more distal and larger (people living in Germany, humankind). We hypothesized that psychologically closer groups would be perceived as less affected by COVID-19 as well as less threatening than more psychologically distal groups. Based on social identity theorizing, we also hypothesized that stronger identification with humankind would change these patterns. Furthermore, we explored how these threat perceptions relate to adherence to COVID-19 health guidelines. In line with our hypotheses, latent random-slope modelling revealed that psychologically distal and larger groups were perceived as more affected by COVID-19 and as more threatening than psychologically closer and smaller groups. Including identification with humankind as a predictor into the threat target model resulted in a steeper increase in threat target perception patterns, whereas identification with humankind did not predict differences in threat source perceptions. Additionally, an increase in threat source perceptions across social groups was associated with more adherence to health guidelines, whereas an increase in threat target perceptions was not. We fully replicated these findings in a subgroup from the original sample (N = 989) four weeks later. We argue that societal recovery from this and other crises will be supported by an inclusive approach informed by a sense of our common identity as human beings.  相似文献   
462.
463.
This paper reports on a workshop on Problem Formulation in Multi-Criteria Decision Analysis held at SPUDM97. The focus of the workshop was the problem formulation phase which occurs between the analyst meeting a person with a ‘mess’ and the time he or she begins to analyse a structured problem with several alternatives scored against several attributes or criteria. The objectives were: to share experience on procedures which might be transferable between the methodologies; to demonstrate different skills used by the analyst in structuring decision problems; and to catalyse a discussion on the problem formulation phase of an analysis. Three analysts, who generally approach problems using multiattribute methods, addressed the same problem. The problem used was constructed to be realistic to three decision makers, who had been trained in the issues of concern. There were two sessions. Each analyst was assigned a decision maker and formulated the problem independently in the first session, held in parallel. They were each observed by two observers and many of the audience at the workshop. The three formulations were presented along with the comments of the observers and discussed at a second plenary session. This paper reports the three formulations and observations, remarking on the ‘tricks of the trade’ employed by the analysts in formulating the problem. The analysts also describe their thinking and their aims in adopting their approach and style of interaction. More general remarks on the process of decision analysis are also offered. © 1998 John Wiley & Sons, Ltd.  相似文献   
464.
The purpose of the present study was to demonstrate the effectiveness of an intervention that included extinction and functional communication training for the reduction of multiply controlled, self‐injurious, and aggressive behaviors in a boy with autism, in a school setting. Analysis of behavioral antecedents and consequences suggested that self‐injury and aggression served the dual behavioral outcomes of escape from difficult tasks, and access to preferred objects. Treatment consisted of teaching the boy an alternate request, while challenging behaviors were concurrently placed on extinction. Acquisition of the alternate requests was associated with a decrease to zero levels of self‐injury and aggression across the two behavioral outcomes, which was maintained when a 5 second delay was implemented. Results indicate that challenging behaviors with different behavioral outcomes can be replaced with functionally equivalent communication. Copyright © 2000 John Wiley & Sons, Ltd.  相似文献   
465.
When, how, and why students use conceptual knowledge during math problem solving is not well understood. We propose that when solving routine problems, students are more likely to recruit conceptual knowledge if their procedural knowledge is weak than if it is strong, and that in this context, metacognitive processes, specifically feelings of doubt, mediate interactions between procedural and conceptual knowledge. To test these hypotheses, in two studies (Ns = 64 and 138), university students solved fraction and decimal arithmetic problems while thinking aloud; verbal protocols and written work were coded for overt uses of conceptual knowledge and displays of doubt. Consistent with the hypotheses, use of conceptual knowledge during calculation was not significantly positively associated with accuracy, but was positively associated with displays of doubt, which were negatively associated with accuracy. In Study 1, participants also explained solutions to rational arithmetic problems; using conceptual knowledge in this context was positively correlated with calculation accuracy, but only among participants who did not use conceptual knowledge during calculation, suggesting that the correlation did not reflect “online” effects of using conceptual knowledge. In Study 2, participants also completed a nonroutine problem-solving task; displays of doubt on this task were positively associated with accuracy, suggesting that metacognitive processes play different roles when solving routine and nonroutine problems. We discuss implications of the results regarding interactions between procedural knowledge, conceptual knowledge, and metacognitive processes in math problem solving.  相似文献   
466.
We sought to test within- and between- family associations of smoking during pregnancy (SDP) and attention deficit-hyperactivity disorder (ADHD) symptoms using a structured interview based on the conventional Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) symptoms and the Strengths and Weaknesses of ADHD-Symptoms and Normal-Behavior (SWAN) scale, which is a population based measure that grew out of the notion that an ADHD diagnosis exists on the extreme end of a continuum of normative behaviors and includes both above- and below- average performance on attention and activity. We used a sibling-comparison approach in a sample of 173 families including siblings aged 7–16 years (52% male) drawn from the state of Missouri, USA, wherein mothers smoked during one pregnancy but not the other. There was a within-family effect of smoking during pregnancy on SWAN hyperactivity/impulsivity and SWAN total ADHD behaviors. The associations between SDP and DSM-IV-based ADHD symptom dimensions as well as SWAN inattention were explained by familial confounds. These findings suggest that SDP exerts a potentially causal effect on increased ADHD hyperactive/impulsive behaviors and that this SDP effect is best captured when hyperactivity/impulsivity is assessed more normatively across the population, rather than specifically assessing problematic behaviors via DSM symptoms. Thus, any potentially causal effect of SDP on ADHD symptom dimensions may be restricted to hyperactive/impulsive behaviors rather than inattention, and normative, non-DSM-IV based behavioral measures may provide a more sensitive test of mechanisms of SDP-ADHD symptom associations, particularly in non-clinical samples.  相似文献   
467.
ABSTRACT

The current study investigated whether a 5-month, adult mentoring intervention delivered by school personnel could enhance the school engagement of ninth grade urban minority adolescents. Compared to 20 at-risk students who did not receive an intervention, 20 at-risk students who were randomly assigned to mentoring exhibited significantly less decline during the first year of high school in perceived teacher support and decision making and were less likely to enter the discipline system. The effects were stronger and included sense of school belonging for participants who were “mentored as intended.” Moreover, mentee and mentor reports of relationship quality were associated with changes in mentored participants' school-related cognitions and behaviors. The findings indicate that adult mentoring may help to prevent normative declines in urban minority youths' school engagement.  相似文献   
468.
469.
Scholarly and public discourses on Muslim immigrants in Europe have questioned if Islam is an impediment to sociocultural adaptation and whether Muslims are a distinctive group in their religiosity and social values. We use a new survey of 480 British Muslims in conjunction with the British Social Attitudes Survey to examine differences between Muslim and non‐Muslim Britons on religiosity (practice, belief, salience) and moral and social issues regarding gender, abortion, and homosexuality. Muslims are more religious than other Britons, including both British Christians and religious “nones.” Muslims also are more conservative than other Britons across the range of social and moral attitudes. Multivariate analysis shows, however, that much of the difference on moral issues is due to socioeconomic disadvantage and high religiosity among Muslims. Although being a highly religious group in an otherwise secular country renders Muslims distinctive, factors that predict social conservatism among all Britons—high religiosity and low SES—apply similarly to Muslims.  相似文献   
470.

The purpose of this paper is to determine the nature of the drug‐crime relationship by exploring the influence of friend behaviors on both adolescent delinquent and substance using behavior. The sample consists of 1381 adolescents evenly divided by gender into three age groups (12, 15 and 18 years old). In general, there is an increase in intensity of substance use from the youngest to the oldest age level with male and female levels being similar within each age group. There are both age and gender differences when examining delinquent behavior. There is a relationship between adolescent drug use and crime (especially among males), however this relationship is relatively modest. In addition, while friends’ behavior is a very strong predictor of the same type of behavior in subjects, there are no strong crossover relationships. Thus, the hypothesis that both types of behavior are part of a specific deviant peer subculture is not confirmed.  相似文献   
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