全文获取类型
收费全文 | 849篇 |
免费 | 49篇 |
国内免费 | 22篇 |
出版年
2023年 | 13篇 |
2022年 | 12篇 |
2021年 | 17篇 |
2020年 | 30篇 |
2019年 | 30篇 |
2018年 | 30篇 |
2017年 | 50篇 |
2016年 | 34篇 |
2015年 | 29篇 |
2014年 | 32篇 |
2013年 | 90篇 |
2012年 | 56篇 |
2011年 | 34篇 |
2010年 | 22篇 |
2009年 | 33篇 |
2008年 | 26篇 |
2007年 | 35篇 |
2006年 | 20篇 |
2005年 | 20篇 |
2004年 | 30篇 |
2003年 | 13篇 |
2002年 | 21篇 |
2001年 | 14篇 |
2000年 | 14篇 |
1999年 | 9篇 |
1998年 | 12篇 |
1997年 | 8篇 |
1996年 | 8篇 |
1995年 | 7篇 |
1994年 | 7篇 |
1992年 | 9篇 |
1991年 | 9篇 |
1990年 | 9篇 |
1989年 | 10篇 |
1988年 | 14篇 |
1987年 | 5篇 |
1986年 | 6篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1983年 | 7篇 |
1982年 | 7篇 |
1981年 | 12篇 |
1979年 | 6篇 |
1978年 | 5篇 |
1976年 | 6篇 |
1974年 | 8篇 |
1973年 | 4篇 |
1972年 | 4篇 |
1970年 | 4篇 |
1968年 | 7篇 |
排序方式: 共有920条查询结果,搜索用时 15 毫秒
81.
82.
Around the world,adolescence is a time of heightened sensation seeking and immature self‐regulation
下载免费PDF全文
![点击此处可从《Developmental science》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Laurence Steinberg Grace Icenogle Elizabeth P. Shulman Kaitlyn Breiner Jason Chein Dario Bacchini Lei Chang Nandita Chaudhary Laura Di Giunta Kenneth A. Dodge Kostas A. Fanti Jennifer E. Lansford Patrick S. Malone Paul Oburu Concetta Pastorelli Ann T. Skinner Emma Sorbring Sombat Tapanya Liliana Maria Uribe Tirado Liane Peña Alampay Suha M. Al‐Hassan Hanan M. S. Takash 《Developmental science》2018,21(2)
The dual systems model of adolescent risk‐taking portrays the period as one characterized by a combination of heightened sensation seeking and still‐maturing self‐regulation, but most tests of this model have been conducted in the United States or Western Europe. In the present study, these propositions are tested in an international sample of more than 5000 individuals between ages 10 and 30 years from 11 countries in Africa, Asia, Europe and the Americas, using a multi‐method test battery that includes both self‐report and performance‐based measures of both constructs. Consistent with the dual systems model, sensation seeking increased between preadolescence and late adolescence, peaked at age 19, and declined thereafter, whereas self‐regulation increased steadily from preadolescence into young adulthood, reaching a plateau between ages 23 and 26. Although there were some variations in the magnitude of the observed age trends, the developmental patterns were largely similar across countries. 相似文献
83.
Onochie Ike Okoye Ferdinand Maduka-Okafor Rita Chimuanya Matthias Anthonia Udeaja Abali I. Chuku 《Journal of Academic Ethics》2018,16(3):275-285
Concern is growing as research continues to find evidence of academic misconduct among medical students. There is, however, paucity of information on this issue among medical students and medical graduates in Africa. We determined the perceptions and attitude of house officers on academic misconduct within Nigerian medical schools. We conducted 7 focus group discussions (FGDs) among pre-registration house-officers (PRHOs) working in a Nigerian Teaching hospital between October and November 2013. A FGD guide containing 7 broad questions related to their perception and attitude on academic misconduct was employed. Ethnographic content analysis and manual coding were adopted in identifying themes, issues and representative quotations. A total of 58 participants out of an eligible pool of 76 PRHOs were recruited. All the groups associated academic misconduct chiefly with cheating in examinations, and perceived it as a commonplace problem. “It is a part of school life”, admitted one PRHO. Copying during exam appeared to be the commonest form of cheating. Another respondent opined that “The lecturers should be more concerned with helping students understand better. They should not make passing an exam a do-or-die affair.” The perception and attitudes towards academic misconduct may be a reflection of the prevailing moral decline in the contemporary Nigerian society. Underlying the reasons adduced by the participants for getting involved in academic misconduct is the fear of failure in examinations. Apart from consolidating formal and informal medical ethics education, the medical schools should ensure that the opportunities and pressures to indulge in academic misconduct are minimized. 相似文献
84.
Laura Di Giunta Concetta Pastorelli Eriona Thartori Anna Silvia Bombi Emma Baumgartner Richard A. Fabes Carol Lynn Martin Craig K. Enders 《Journal of abnormal child psychology》2018,46(5):1021-1035
In the present study, the predictors and outcomes associated with the trajectories of peer rejection were examined in a longitudinal sample of Italian children (338 boys, 269 girls) ages 10 to 14 years. Follow-up assessments included 60% of the original sample at age 16–17. Low, medium, and high rejection trajectory groups were identified using growth mixture models. Consistent with previous studies, we found that (a) being less prosocial and more physically aggressive at age 10 was characteristic of those children with the high rejection trajectory; (b) being less attractive was related to higher peer rejection from age 10 to 14; and (c) boys with a high rejection trajectory showed high levels of delinquency and anxiety-depression and low levels of academic aspiration at age 16–17, whereas girls with a high rejection trajectory showed low levels of academic aspiration and social competence at age 16–17. Our findings indicate the detrimental consequences of peer rejection on children’s development and adjustment and shed light on the mechanisms that contribute to maintaining or worsening (e.g., being attractive, prosocial, and aggressive) a child’s negative status (e.g., being rejected) within his or her peer group over time. 相似文献
85.
86.
Michela Lenzi Alessio Vieno Gianmarco Altoè Luca Scacchi Douglas D. Perkins Rita Zukauskiene Massimo Santinello 《American journal of community psychology》2015,55(3-4):444-454
The findings on the association between Social Networking Sites and civic engagement are mixed. The present study aims to evaluate a theoretical model linking the informational use of Internet‐based social media (specifically, Facebook) with civic competencies and intentions for future civic engagement, taking into account the mediating role of civic discussions with family and friends and sharing the news online. Participants were 114 Italian high school students aged 14–17 years (57 % boys). Path analysis was used to evaluate the proposed theoretical model. Results showed that Facebook informational use was associated with higher levels of adolescent perceived competence for civic action, both directly and through the mediation of civic discussion with parents and friends (offline). Higher levels of civic competencies, then, were associated with a stronger intention to participate in the civic domain in the future. Our findings suggest that Facebook may provide adolescents with additional tools through which they can learn civic activities or develop the skills necessary to participate in the future. 相似文献
87.
88.
89.
The results of previous studies on the factorial structure of Wechsler Intelligence Scales are somewhat inconsistent across normal and pathological samples. To study specific clinical groups, such as developmentally disabled persons, it is useful to examine the factor structure in appropriate samples. A factor analysis was carried out using the principal component method and the Varimax orthogonal rotation on the Wechsler Adult Intelligence Scale (WAIS-R) in a sample of 203 developmentally disabled persons, with a mean age of 25 years 4 months. Developmental disability ranged from mild to moderate. Partially contrasting with previous studies on normal samples, results found a two-factor solution. Wechsler's traditional Verbal and Performance scales seems to be more appropriate for this sample than the alternative three-factor solution. 相似文献
90.
The Girls' Circle is a support group for adolescent girls developed by Beth Hossfeld and Giovanna Taormina as a unique program that addresses the needs of girls by focusing on increasing connections, building empathic skills, and developing resiliency. The present study evaluates the effectiveness of the Girls' Circle intervention on improving social support, body image, locus of control, self-efficacy, and self-esteem. Sixty-three girls from 9 support groups (comprising 5 to 15 girls each) across the United States completed the Multidimensional Scale of Perceived Social Support, the Body Parts Satisfaction Scale, the Nowicki-Strickland Personal Reaction Survey, Schwarzer's General Self-Efficacy Scale, and the Rosenberg Self-Esteem scale both before and after the 10-week Girls' Circle program. Results revealed a significant increase in social support, body image, and self-efficacy after completion of the program. 相似文献