全文获取类型
收费全文 | 31762篇 |
免费 | 431篇 |
国内免费 | 136篇 |
专业分类
教育 | 21909篇 |
科学研究 | 2959篇 |
各国文化 | 335篇 |
体育 | 3648篇 |
综合类 | 26篇 |
文化理论 | 270篇 |
信息传播 | 3182篇 |
出版年
2021年 | 293篇 |
2020年 | 477篇 |
2019年 | 691篇 |
2018年 | 946篇 |
2017年 | 888篇 |
2016年 | 884篇 |
2015年 | 546篇 |
2014年 | 726篇 |
2013年 | 5545篇 |
2012年 | 658篇 |
2011年 | 709篇 |
2010年 | 554篇 |
2009年 | 613篇 |
2008年 | 626篇 |
2007年 | 585篇 |
2006年 | 587篇 |
2005年 | 504篇 |
2004年 | 738篇 |
2003年 | 632篇 |
2002年 | 638篇 |
2001年 | 805篇 |
2000年 | 681篇 |
1999年 | 567篇 |
1998年 | 354篇 |
1997年 | 333篇 |
1996年 | 385篇 |
1995年 | 334篇 |
1994年 | 338篇 |
1993年 | 285篇 |
1992年 | 474篇 |
1991年 | 460篇 |
1990年 | 448篇 |
1989年 | 478篇 |
1988年 | 420篇 |
1987年 | 412篇 |
1986年 | 415篇 |
1985年 | 467篇 |
1984年 | 382篇 |
1983年 | 397篇 |
1982年 | 324篇 |
1981年 | 311篇 |
1980年 | 331篇 |
1979年 | 451篇 |
1978年 | 329篇 |
1977年 | 298篇 |
1976年 | 271篇 |
1975年 | 236篇 |
1974年 | 238篇 |
1973年 | 226篇 |
1971年 | 226篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
901.
R. G. Cochrane J. Elkins Dawn M. Richmond 《International Journal of Disability, Development & Education》1969,16(3):131-142
Three hundred and ninety‐nine Grade 4 Brisbane children were given a battery o1 general ability and achievement tests. Means and standard deviations allowed construction of 15‐point scales for a Queensland Grade 4. A correlation matrix included indices concerning sub‐tests of general ability and achievement tests. Comparisons with original A.C.E.R. co‐efficients were made. The matrix was factor sub‐tests of general ability and achievement tests. Comparisons with analysed and rotated, three factors emerging ‐‐ verbal, performance and computational. A canonical correlation was performed and three significant elements emerged ‐‐ a verbal, a computational (or integrative or automatic sequential) and a problem‐solving element. 相似文献
902.
903.
OBJECTIVE: The purpose of this paper is to present a newly developed measure of guardian support, the Needs-Based Assessment of Parental (Guardian) Support (NAPS), an empirical evaluation of that measure, and its comparison with another measure of guardian support. The theoretical model that underlies this measure applies humanistic theory and Maslow's hierarchy of needs to the understanding of guardian support. METHOD: The study employed a cross-sectional nonexperimental survey design using 183 nonoffending guardians who accompanied children presenting for a medical/forensic examination for sexual abuse. The NAPS and an existing measure of guardian support were administered during the hospital outpatient visit, and basic information concerning the child and abuse situations were gathered. RESULTS: The NAPS had robust psychometric properties and was culturally sensitive. Tests of specific hypotheses supported the construct validity of the measure and a conceptualization of guardian support as hierarchical, with four stages of support. CONCLUSIONS: The brevity and ease of administration of the NAPS for both the clinician and guardian suggest that it is a viable assessment tool. The strong support for the NAPS' underlying theoretical model suggests that the nonoffending guardians' available resources need to be considered when assessing guardian support. 相似文献
904.
School extracurricular activity participation as a moderator in the development of antisocial patterns 总被引:15,自引:0,他引:15
Mahoney JL 《Child development》2000,71(2):502-516
This research involves a longitudinal study of antecedents and moderators in the development of antisocial patterns. Participants included 695 boys and girls who were interviewed annually from childhood to the end of high school and again at ages 20 and 24. Cluster analyses identified four configurations of boys and girls that were reasonably homogeneous with respect to behavior and academic performance at the beginning of the investigation. When tracked over time, the configurations differed significantly in patterns of early school dropout and criminal arrests. Boys and girls in the "multiple risk configuration" were more likely than those in other configurations to show long-term antisocial patterns. Participation in school extracurricular activities was associated with reduced rates of early dropout and criminal arrest among high-risk boys and girls. The decline in antisocial patterns was dependent on whether the individuals' social network also participated in school extracurricular activities. 相似文献
905.
Luce C. A. Claessens Jan van Tartwijk Anna C. van der Want Helena J. M. Pennings Nico Verloop Perry J. den Brok 《The Journal of educational research》2017,110(5):478-493
The authors voice teachers' perceptions of their interpersonal experiences with students in both positive and problematic relationships. Interview data from 28 teachers were examined by coding utterances on teacher and student interactions. Results indicate that teachers defined the quality of the relationship mostly by the level of communion (friendly vs. hostile), instead of by the level of agency (in control vs. powerless). Analyses of mentioned teacher and student behavior show a friendly interactional pattern for positive relationships and a hostile pattern for problematic ones. In teachers' perceptions, positive and problematic relationships also differed in context where encounters take place and topic of talk. Contrary to interactions in problematic relationships, encounters in positive relationships were mostly situated outside the classroom context and conversations during these encounters covered a wide range of topics. Implications for teacher education programs are discussed. 相似文献
906.
Emily J. Roberts-Tyler John Carl Hughes Richard P. Hastings 《Journal of Research in Special Educational Needs》2020,20(1):14-26
Increasing evidence indicates that individuals with Intellectual Disabilities (ID) might benefit from phonics‐based reading instruction. However, research and instruction in this field has predominantly focused on sight word reading. Models for complex interventions recommend that feasibility research be conducted prior to conducting randomised studies to assess efficacy of interventions (Thabane et al., 2010). The aim of the current paper is therefore to investigate feasibility questions relating to conducting a full‐scale randomised controlled trial (RCT) evaluation of an online, phonics‐based reading programme (Headsprout? Early Reading; HER) with children with ID. Employing a randomised pre‐test post‐test group design, this study explores and trials important aspects of a RCT evaluation to inform a full‐scale RCT. We also found that HER had a significant effect on reading skills when compared with ‘education as usual’, with large effect sizes on the main outcome measure. This indicates that further, more robust evaluations using HER with children with ID are a worthwhile pursuit. 相似文献
907.
This study explored kindergartners' and first graders' collaborative processes to understand the nature of peer collaboration and the learning opportunities afforded by peer discourse. Data were drawn from 6 dyads who participated in a computer writing project for 2 school semesters. Children's videotaped interactions were analyzed with the focus on understanding how children's collaborative roles and patterns changed over time. Examination of video data and children's computer products revealed that (a) children's interaction patterns changed from a more independent style toward a more integrative style, as shown in their distribution of control over mouse and keyboard and in the written outcomes of their collaboration; (b) a shift in role patterns emerged across repeated instances of peer collaboration so that children began alternating the roles of leader and observer, and less competent children began carrying out more important tasks; and (c) the computer served as an object of reference for children to sustain their interaction and stay on task. 相似文献
908.
Based on the Job Demands-resources (RD-R) model, the aim of the current study was to examine how pressure arising from imposed curriculum changes and teacher self-efficacy relate to perceived stress in teachers. Participants (839 teachers working in English schools) completed an online survey that contained questions about demographics, self-reported pressure from imposed curriculum changes, teacher self-efficacy, and perceived stress. Pressure from imposed curriculum changes was positively, and teacher self-efficacy negatively, related to perceived stress. Teacher-self efficacy moderated relations between pressure from imposed curriculum changes and perceived stress. High teacher self-efficacy was associated with lower perceived stress, relative to low teacher self-efficacy, when pressure from imposed curriculum changes was low. The differential advantage offered by high self-efficacy declined as pressure from imposed curriculum changes increased. 相似文献
909.
Composite reading scores obtained from parents of 125 reading-disabled children and 125 matched control children who participated in the Colorado Family Reading Study were used to test the validity of self-reported reading problems. Parents who reported that they encountered serious difficulty learning to read had significantly lower reading scores than did those who reported no positive history of reading problems. Moreover, this difference was larger for parents of reading-disabled children than for those of controls. Thus, parental self-reports provide a valid index of reading problems. 相似文献
910.
This study evaluated the emotional and marital adjustment of hearing parents of hearing-impaired youths. Participants included mothers and fathers of hearing-impaired youths and mothers and fathers of hearing youths. In contrast with expectations based on clinical impressions reported in the literature, parents of hearing-impaired youths reported less symptomatology than did parents of hearing youths, and there were no differences in the marital satisfaction of parents in intact families. Moreover, parental adjustment was not associated with the duration of time since the child was diagnosed as hearing impaired. In addition, hierarchical multiple regression analyses revealed that family cohesion was associated with low maternal symptomatology and high marital satisfaction for both spouses. For mothers, low symptomatology was associated with low stress and female gender of child; high marital satisfaction also was linked with a less severe degree of hearing loss in the youth. 相似文献