全文获取类型
收费全文 | 45604篇 |
免费 | 968篇 |
国内免费 | 11篇 |
专业分类
46583篇 |
出版年
2020年 | 288篇 |
2019年 | 295篇 |
2018年 | 3824篇 |
2017年 | 3188篇 |
2016年 | 2639篇 |
2015年 | 505篇 |
2014年 | 462篇 |
2013年 | 2065篇 |
2012年 | 1302篇 |
2011年 | 3142篇 |
2010年 | 2949篇 |
2009年 | 1910篇 |
2008年 | 2354篇 |
2007年 | 2842篇 |
2006年 | 643篇 |
2005年 | 780篇 |
2004年 | 729篇 |
2003年 | 616篇 |
2002年 | 608篇 |
2001年 | 818篇 |
2000年 | 861篇 |
1999年 | 624篇 |
1998年 | 320篇 |
1997年 | 270篇 |
1996年 | 249篇 |
1992年 | 488篇 |
1991年 | 445篇 |
1990年 | 486篇 |
1989年 | 448篇 |
1988年 | 426篇 |
1987年 | 433篇 |
1986年 | 435篇 |
1985年 | 455篇 |
1984年 | 363篇 |
1983年 | 326篇 |
1982年 | 274篇 |
1979年 | 416篇 |
1978年 | 299篇 |
1977年 | 273篇 |
1976年 | 246篇 |
1975年 | 355篇 |
1974年 | 399篇 |
1973年 | 363篇 |
1972年 | 340篇 |
1971年 | 299篇 |
1970年 | 267篇 |
1969年 | 325篇 |
1968年 | 373篇 |
1967年 | 332篇 |
1966年 | 344篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
Gregory A. Vinson Brian S. Connelly Deniz S. Ones 《International Journal of Selection & Assessment》2007,15(1):118-133
This study examined individuals' tendencies to migrate from one organization to another (i.e., the propensity to switch employers). Previous researchers have suggested that switching organizations throughout the career span may be partially heritable and therefore related to individual differences in personality traits. If personality traits are indeed related to a tendency to turnover from organizations, this suggests that current procedures for calculating utility may be inaccurate. Using a database of 1081 individuals who have been in the workforce for several years, results indicated that personality traits measured by the Occupational Personality Questionnaire (non‐ipsative; OPQn) were modestly related to organization switching (i.e., repeated moves from organization to organization). We found that higher scores on extraversion, openness to experience, and conscientiousness‐related traits were modestly correlated with more frequent organization switching. However, we demonstrate that these modest relationships can produce large inaccuracies in utility estimates. 相似文献
4.
5.
Leigh M. Riby Timothy J. Perfect Brian T. Stollery 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2004,57(2):241-267
Previous research demonstrates that older adults are poor at dual tasking, but there is less agreement on whether their decrement is worse than that predicted from single-task performance. This study investigated whether task domain moderates dual-task costs in old age. In two experiments, young and older adults retrieved either previously learned associates (episodic retrieval) or overlearned category members (semantic retrieval) under single or working-memory load conditions, using cued recall (Experiment 1) and recognition (Experiment 2) procedures. In both experiments the proportional costs of dual tasking were age invariant for semantic retrieval but were particularly marked for episodic retrieval, although the size of the age effect was reduced in recognition compared to cued recall. The data suggest that age effects in dual tasking may be domain specific. 相似文献
6.
Thomas A Wills Velma McBride Murry Gene H Brody Frederick X Gibbons Meg Gerrard Carmella Walker Michael G Ainette 《Health psychology》2007,26(1):50-59
OBJECTIVE: To test a theoretical model of how ethnic pride and self-control are related to risk and protective factors. DESIGN: A community sample of 670 African American youth (mean age = 11.2 years) were interviewed in households. MAIN OUTCOME MEASURES: Measures of cigarette smoking, alcohol use, and sexual behavior (lifetime to past month). RESULTS: Structural modeling analyses indicated parenting was related to self-control and self-esteem, and racial socialization was related to ethnic pride. Self-control and self-esteem variables were related to levels of deviance-prone attitudes and to perceptions of engagers in, or abstainers from, substance use and sexual behavior. The proximal factors (behavioral willingness, resistance efficacy, and peer behavior) had substantial relations to the criterion variables. Participant gender and parental education also had several paths in the model. Results were generally similar for the 2 outcome behaviors. CONCLUSIONS: In this population, self-esteem and self-control are related to parenting approaches and have pathways to attitudes and social perceptions that are significant factors for predisposing to, or protecting against, early involvement in substance use and sexual behavior. 相似文献
7.
8.
9.
Subjects in five experiments read nine-digit memory lists from a cathode ray tube for immediate recall. Reading aloud always produced a localized and reliable advantage for the last item, compared to reading silently. Two experiments on whispered and mouthed lists, with or without simultaneous broadband noise, falsified expectations derived from the theory of precategorical acoustic storage. Three additional experiments showed no enhancement of recency in the silent conditions when the digits were drawn or spelled gradually on the screen, a result that is inconsistent with the changing-state hypothesis. The classic auditory-visual modality effect is large and reliable, but still poorly understood. 相似文献
10.