Intellectual property rights lessons from the Cedars project for digital preservation     

Catherine Seville  Ellis Weinberger 《New Review of Academic Librarianship》2013,19(1):217-223

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Construct validation of physical activity surveys in culturally diverse older adults: a comparison of four commonly used questionnaires     

Moore DS  Ellis R  Allen PD  Cherry KE  Monroe PA  O'Neil CE  Wood RH 《Research quarterly for exercise and sport》2008,79(1):42-50

The purpose of this study was to establish validity evidence of four physical activity (PA) questionnaires in culturally diverse older adults by comparing self-report PA with performance-based physical function. Participants were 54 older adults who completed the Continuous Scale Physical Functional Performance 10-item Test (CS-PFP10), Physical Activity Scale for the Elderly (PASE), HAMPS Physical Activity Questionnaire for Older Adults, Yale Physical Activity Survey (YPAS), and modified Baecke questionnaire. The total PASE score, three outcome scores for the CHAMPS, and three summary indices for the YPAS were significantly correlated with total CS-PFP10 score. The modified Baecke exhibited no correlations with CS-PFP10 scores. The PASE, CHAMPS, and YPAS appear to be the most valid PA self-report questionnaires for culturally diverse older adults.  相似文献   

Beyond situational ambiguity in peer conflict: unique and combined effects of cues from an antagonist and a best friend     

Smith-Schrandt HL  Ojanen T  Gesten E  Feldman MA  Calhoun CD 《Child development》2011,82(6):1921-1937

In accord with increasing recognition of the situation specificity of childhood social behaviors, individual and contextual differences in children's responses to potential peer conflict were examined (hostile attribution, behavioral strategies, and affective reactions; N = 367, 9-12 years, 197 girls). Situational cues from 2 sources, the antagonist and a witnessing best friend, were designed to suggest the antagonist's intentions. Multilevel modeling indicated that children's responses generally varied more according to cues from the antagonist than friend, but the latter also affected responses, especially when conflicting with other situational information. Cognitive and affective responses were also influenced by gender, social goals, friendship quality, and self-efficacy for peer interaction. Findings provide theoretical insight on the context of peer conflict.  相似文献   

The role of social identification as university student in learning: relationships between students’ social identity,approaches to learning,and academic achievement     

Ana-Maria Bliuc  Robert A. Ellis  Peter Goodyear  Daniela Muntele Hendres 《教育心理学》2011,31(5):559-574

This article describes research exploring the relationship between students’ self-perceptions in the context of university learning (i.e. student social identity), their approaches to learning, and academic achievement. The exploration of these inter-related aspects requires a mix of theoretical approaches, that is, in this research both social identity perspective from social psychology and the student learning research framework are used to explore student identity and learning in the context of higher education. Two structural equation models drawing on both these theoretical frameworks were tested. In the first of these models, deep approaches to learning are positively associated with students’ social identification as university student and positively predict academic achievement. In the second model, surface approaches to learning are negatively associated with students’ social identification and negatively predict academic achievement. The mediational roles of deep and surface approaches to learning in the relationship between student social identity and academic achievement are also explored.  相似文献   

Impact of a universal school-based violence prevention program on violent delinquency: distinctive benefits for youth with maltreatment histories     

Crooks CV  Scott K  Ellis W  Wolfe DA 《Child abuse & neglect》2011,35(6):393-400

Objective

Child maltreatment constitutes a strong risk factor for violent delinquency in adolescence, with cumulative experiences of maltreatment creating increasingly greater risk. Our previous work demonstrated that a universal school-based violence prevention program could provide a protective impact for youth at risk for violent delinquency due to child maltreatment history. In this study we conducted a follow-up to determine if participation in a school-based violence prevention program in grade 9 continued to provide a buffering effect on engaging in acts of violent delinquency for maltreated youth, 2 years post-intervention.

Methods

Secondary analyses were conducted using data from a cluster randomized controlled trial of a comprehensive school-based violence prevention program. Students (N = 1,722; 52.8% female) from 20 schools participated in 21 75-min lessons in grade 9 health classes. Individual data (i.e., gender, child maltreatment experiences, and violent delinquency in grade 9) and school-level data (i.e., student perception of safety averaged across students in each school) were entered in a multilevel model to predict violent delinquency at the end of grade 11.

Results

Individual- and school-level factors predicting violent delinquency in grade 11 replicated previous findings from grade 9: being male, experiencing child maltreatment, being violent in grade 9, and attending a school with a lower perceived sense of safety among the entire student body increased violent delinquency. The cross-level interaction of individual maltreatment history and school-level intervention was also replicated: in non-intervention schools, youth with more maltreatment in their background were increasingly likely to engage in violent delinquency. The strength of this relationship was significantly attenuated in intervention schools.

Conclusions

Follow-up findings are consistent with the buffering effect of the prevention program previously found post-intervention for the subsample of youth with maltreatment histories.

Practice implications

A relative inexpensive school-based violence prevention program that has been shown to reduce dating violence among the whole student body also creates a protective effect for maltreated youth with respect to lowering their likelihood of engaging in violent delinquency.  相似文献   

Family environments, adrenarche, and sexual maturation: a longitudinal test of a life history model   总被引：2，自引：0，他引：2  

Ellis BJ  Essex MJ 《Child development》2007,78(6):1799-1817

Life history theorists have proposed that humans have evolved to be sensitive to specific features of early childhood environments and that exposure to different environments biases children toward development of different reproductive strategies, including differential pubertal timing. The current research provides a longitudinal test of this theory. Assessments of family environments, based on interviews with mothers and fathers, were conducted in preschool, and children were then followed prospectively through middle childhood. Adrenal hormones were assayed in a selected subsample of 120 children (73 girls) at age 7, and parent and child reports of secondary sexual characteristics were collected in the full female sample of 180 girls at age 11. Higher quality parental investment (from both mothers and fathers) and less father-reported Marital Conflict/Depression forecast later adrenarche. Older age at menarche in mothers, higher socioeconomic status, greater mother-based Parental Supportiveness, and lower third-grade body mass index each uniquely and significantly predicted later sexual development in daughters. Consistent with a life history perspective, quality of parental investment emerged as a central feature of the proximal family environment in relation to pubertal timing.  相似文献   

Peer group status as a moderator of group influence on children's deviant, aggressive, and prosocial behavior   总被引：2，自引：1，他引：1  

Ellis WE  Zarbatany L 《Child development》2007,78(4):1240-1254

Group status was examined as a moderator of peer group socialization of deviant, aggressive, and prosocial behavior. In the fall and 3 months later, preadolescents and early adolescents provided self-reported scores for deviant behavior and group membership, and peer nominations for overt and relational aggression, prosocial behavior, and social preference. Using the social cognitive map, 116 groups were identified involving 526 children (282 girls; M age=12.05). Hierarchical linear modeling revealed that high group centrality (visibility) magnified group socialization of relational aggression, deviant behavior, and prosocial behavior, and low group acceptance magnified socialization of deviant behavior. Results suggest group influence on behavior is not uniform but depends on group status, especially group visibility within the larger peer context.  相似文献   

Prevalence of overweight among deaf children     

Dair J  Ellis MK  Lieberman LJ 《American annals of the deaf》2006,151(3):318-326

The study examined the prevalence of overweight cases in a sample of 151 deaf children aged 6-11 years. Participants were deaf students attending six elementary schools, both regular and special, in four states. Body mass index (BMI) was calculated using height and weight, plotted on the Center for Disease Control and Prevention (CDC) U.S. BMI-for-age growth charts, then compared to national values for same age and gender (CDC, 2006a, 2006b; National Center for Health Statistics, 2005). The results indicated that the prevalence of overweight deaf children aged 6-11 years was above the national percentage for same age and gender. A larger percentage of boys was overweight (24.7%) than girls (20.4%). After age 8 years, girls showed a consistent decrease in BMI with increasing age, a trend not demonstrated by boys. As a group, deaf children demonstrate a higher prevalence of overweight than national averages.  相似文献   

Methylphenidate and the activity of hyperactives in the informal setting   总被引：1，自引：0，他引：1  

M J Ellis  P A Witt  R Reynolds  R L Sprague 《Child development》1974,45(1):217-220

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Working with violence and confrontation using solution focused approaches: creative practice with children,young people and adults     

Natasha Ellis 《Educational Psychology in Practice》2017,33(3):338-339

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