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81.
Depressive symptoms and self-harm, i.e. non-suicidal self-injury and suicidal behaviors, are highly prevalent in youngsters involved in Child Welfare System (CWS) services. Little research investigates, however, why these CWS youngsters are at risk. We explored whether trust in caregiver support and communication about experiences with primary caregivers, are associated with CWS youngsters’ depressive symptoms and/or self-harm. An anonymous online survey of 271 CWS youngsters (10–21 years of age, 57.2% female) was used to assess trust and communication, and depressive symptoms/self-harm. Results showed significant negative associations between self-reported trust in maternal and paternal support, and depressive symptoms/self-harm. Communication about experiences with one’s biological mother mediated the relationship between trust in maternal support and depressive symptoms/self-harm. Furthermore, the presence of an additional trustworthy caregiver buffered the impact of low trust in maternal or paternal support on depressive symptoms/self-harm. Implications for interventions targeting CWS youngsters’ depressive symptoms and self-harm are discussed.  相似文献   
82.
Despite an increase in anterior knee laxity (AKL) during the adolescent growth spurt in girls, it is unknown whether landing biomechanics are affected by this change. This study investigated whether pubescent girls with higher AKL displayed differences in their lower limb strength or landing biomechanics when performing a horizontal leap movement compared to girls with lower AKL. Forty-six pubescent girls (10–13 years) were tested at the time of their peak height velocity (PHV). Passive AKL was quantified and used to classify participants into higher (HAKL; peak displacement > 4 mm) and lower (LAKL; peak displacement < 3 mm) AKL groups (n = 15/group). Three-dimensional kinematics, ground reaction forces (GRF) and muscle activation patterns were assessed during a horizontal leap landing. HAKL participants displayed significantly (P < 0.05) reduced hip abduction, increased hip abduction moments, as well as earlier hamstring muscle and later tibialis anterior activation compared to LAKL participants. Girls with HAKL displayed compensatory landing biomechanics, which are suggested to assist the functional stability of their knees during this dynamic task. Further research is warranted, however, to confirm or refute this notion.  相似文献   
83.
An emerging area of research has focused on understanding how the group dynamics of a sport team influence positive youth development (PYD). The identities that youth form through their membership in sport teams (i.e., social identities) have been found to influence teammate behavior and team performance. Yet, minimal work exists on social identity and PYD in youth sport. Purpose: The purpose of this study was to investigate the relationship between social identity and PYD in sport. Method: Youth engaged in recreational sport (= 219; Mage = 11.61 years, SD = 1.39 years) completed measures of social identity and PYD in sport. The social identity measure assessed 3 dimensions including ingroup ties (IGT; perceptions of similarity, bonding, belongingness), cognitive centrality (importance of being a team member), and ingroup affect (IGA; feelings associated with group membership). A regression analysis was performed separately for 4 PYD outcomes (personal and social skills, goal setting, initiative, negative experiences) with the 3 dimensions of social identity entered as predictors. Results: Regression analyses revealed that IGT and IGA were positively associated with personal and social skills (R2 Adj. = .29). Further, IGT predicted initiative (R2 Adj. = .16), whereas IGA was positively associated with goal setting (R2 Adj. = .17) and negatively associated with negative experiences (R2 Adj. = .08). Conclusion: The findings extend previous research highlighting the benefits of social identity on teammate behavior and team performance and demonstrate how social identity may contribute to PYD through sport.  相似文献   
84.
The political climate often changes following the installment of a new president. This volatility presents opportunities for examining how elections might affect vulnerable subgroups such as Hispanic/Latino (HL) adolescents. The present study explored the perception of negative political climate among HL adolescents before and after the 2020 U.S. presidential election and its association with internalizing symptoms and substance use. We conducted the study in Los Angeles and Miami between 2020 and 2021, with a sample of 304 HL adolescents (Females = 60.8 %), aged 15.3 years on average. Participants completed measures of negative political climate (pre- post-election) and measures of depressive symptoms, anxiety, substance misuse, and substance use intentions after the election. We used paired tests and linear mixed-effects modeling to explore changes in perceived negative climate before and after the election. Structural equation modeling was used to determine predictors of negative political climate and its associations with internalizing symptoms and substance use. Results indicated that following the election negative political climate increased significantly in Miami and among Cuban-origin adolescents but not in Los Angeles or among Mexican-origin adolescents. Pre-election perceived negative political climate was significantly predicted by gender, study site, and mother’s nativity. Pre-election negative political climate predicted post-election internalizing symptoms and substance use intentions indirectly through post-election negative political climate. HL youth’s perceived political climate is a complex construct that might vary across different sociopolitical contexts and populational sub-groups. Exploring variations in politically-based cultural stressors and their role as mental health and substance use risk factors is crucial to addressing HL disparities.  相似文献   
85.
Students’ value beliefs tend to decrease across secondary school (Wigfield et al., 2015). However, previous studies did not differentiate between all the dimensions of task values defined by expectancy-value theory (Eccles et al., 1983). Therefore, this study evaluated an instrument for assessing multiple value dimensions across grade level and academic subjects and tested for differences between grade levels in these subjects. A total of 830 students from Grades 5 to 12 completed a questionnaire assessing their value beliefs in German, English, math, biology, and physics with 37 items each. The factor structure was shown to be invariant across academic subjects, grade levels, and gender. Generally, students in higher grades showed lower means on positive value facets and higher means on cost facets. However, the results varied substantially by facet and subject. Furthermore, stereotypical gender differences in value beliefs were found, and some of these differences increased with students’ grade level. The findings indicate that examining multiple dimensions and subjects is crucial for developing a complete understanding of the development of students’ value beliefs.  相似文献   
86.
Abstract

Educators and policymakers are paying increased attention to the academic outcomes of students in the middle grades (i.e., Grades 6–8). One reform proposed to improve outcomes for these students is to replace middle schools (with Grade 6–8, 7–8, or 7–9 configurations) with K-8 schools. This longitudinal study evaluated the effects of continuously attending a K-8 school, rather than transitioning from an elementary school to a middle school, on Grade 8 reading and mathematics achievement. Drawing on nationally representative data from the Early Childhood Longitudinal Study–Kindergarten 1998 cohort (N = 8,237), the study used propensity score stratification to control for observable selection bias. Findings indicated that K-8 schools produce small, significant effects for reading (effect size = 0.15 or approximately 6–8 months of schooling), but nonsignificant effects for mathematics. Results were robust to several alternative specifications, including accounting for nesting of children within schools and using different approaches for propensity score matching. Findings provide conditional support for K-8 schools, highlight the need for cost-effectiveness research on this topic, and raise questions about the specific mechanisms for K-8 schools’ advantages.  相似文献   
87.
Queer adolescence films in the US and Britain in the 1990s show positive representations of same‐sex attraction, romance, and confrontations with homophobia. Films like Beautiful Thing, Edge of Seventeen, and Get Real are primarily targeted at young gay and lesbian viewers who need supportive and optimistic visualizations of eroticized queer politics, struggle and success, agony and happiness. These films are characterized, however, by complicated representations of the queer body, eroticization of physical inequality in same‐sex relationships, and the melodramatic coming‐out of agonized protagonists, which highly support the notion of a fixed and stable sexual orientation.  相似文献   
88.
This article investigates justice judgments concerning grading. In two studies with secondary students (N1 = 350 academic-track students; N2 = 225 intermediate [n = 81] and academic-track students [n = 144]) attending the 7th to the 12th grade level, participants were presented with vignettes describing three different grading systems: criterion-referenced grading, norm-referenced grading, and individual-referenced grading. The subjects graded and other situational characteristics were varied. In both studies, factor analyses consistently revealed that students’ justice judgments were contingent on the comparison standard applied, but independent of other situational characteristics. Criterion-referenced grading was rated as the most just practice, individual-referenced grading as almost just, and norm-referenced grading as almost unjust. The better the grades received the more the students evaluated criterion-referenced grading to be just. Students attending intermediate-track schools did not object to norm-referenced grading as strongly as their peers at academic-track schools did. Consequences for teachers’ grading practices are discussed.  相似文献   
89.
Lesbian, gay, and bisexual (LGB) adolescents are avid users of computer-mediated communication (CMC), but few empirical studies have investigated the function of CMC in the lives of LGB youth. Grounded in the media practice model, the present study explored the relationships among CMC, sexual identity commitment, and well-being by surveying LGB adolescents (N = 570). Results indicated that a positive relationship existed between time spent on social network sites and well-being that was mediated by sexual identity commitment. Time spent instant messaging, sending/receiving e-mail, or in chat rooms was not related to sexual identity commitment or well-being. Social network sites may aid LGB youth in understanding their sexual identities in ways that other CMC modalities cannot.  相似文献   
90.
This study investigated the relations between early adolescents’ academic motivational orientations and an aspect of quality of friendship: intimacy. Two-hundred and three Jewish-Israeli seventh grade students responded to surveys asking them about their academic achievement goals and about characteristics of their friendships. Variable-centered regression analyses suggested that mastery goals were positively associated with mutual sharing of difficulties, trust, and adaptive social problem-solving between friends, whereas performance-approach goals were negatively associated with intimacy friendship. Moreover, both performance-approach and performance-avoidance goals were associated with mistrust, inconsideration, and tension between friends. A person-centered analysis, employing cluster analysis, suggested that profiles with a higher level of mastery goals relative to both types of performance goals were associated with less mistrust among friends in comparison with profiles with a higher level of performance goals relative to mastery goals. The findings point to the connection between academic motivation and social relationships in school.  相似文献   
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