全文获取类型
收费全文 | 184194篇 |
免费 | 8138篇 |
国内免费 | 163篇 |
专业分类
192495篇 |
出版年
2020年 | 2795篇 |
2019年 | 3473篇 |
2018年 | 3738篇 |
2017年 | 4163篇 |
2016年 | 4793篇 |
2015年 | 3948篇 |
2014年 | 4823篇 |
2013年 | 23580篇 |
2012年 | 5125篇 |
2011年 | 4374篇 |
2010年 | 4119篇 |
2009年 | 4920篇 |
2008年 | 4532篇 |
2007年 | 4132篇 |
2006年 | 4538篇 |
2005年 | 4455篇 |
2004年 | 3967篇 |
2003年 | 3560篇 |
2002年 | 3406篇 |
2001年 | 3815篇 |
2000年 | 3615篇 |
1999年 | 3472篇 |
1998年 | 2903篇 |
1997年 | 2722篇 |
1996年 | 2613篇 |
1995年 | 2464篇 |
1994年 | 2425篇 |
1993年 | 2363篇 |
1992年 | 2821篇 |
1991年 | 2674篇 |
1990年 | 2537篇 |
1989年 | 2411篇 |
1988年 | 2366篇 |
1987年 | 2359篇 |
1986年 | 2359篇 |
1985年 | 2601篇 |
1984年 | 2614篇 |
1983年 | 2390篇 |
1982年 | 2420篇 |
1981年 | 2386篇 |
1980年 | 2234篇 |
1979年 | 2319篇 |
1978年 | 2245篇 |
1977年 | 2185篇 |
1976年 | 2006篇 |
1975年 | 2116篇 |
1974年 | 2162篇 |
1973年 | 2011篇 |
1972年 | 1618篇 |
1971年 | 1547篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
861.
Coby Gerlsma Ineke Mosterman Sytske Buwalda Paul M. G. Emmelkamp 《Journal of psychopathology and behavioral assessment》1992,14(4):343-361
The relationship between memories of childhood experiences (e.g., adverse parenting) and adult depression often found raises questions of interpretation. On the one hand, both laboratory studies and clinicians' experiences suggest that subjects in a depressed mood frequently show a negative bias in perceptions and memories. Negative childhood memories in depressed persons might, therefore, be interpreted as epiphenomena of depressed mood instead of etiological factors. On the other hand, memories of childhood experiences seem remarkably stable across changes in depressed mood, especially when memories are elicited by means of standardized questionnaires. In the mood and memory literature several explanations for this stability are offered. For one thing, highly structured cues to elicit memories (such as in questionnaires) are hypothesized to be less susceptible to mood bias than unstructured memory cues (such as in free recall procedures). On the other hand, resource allocation theorists suggest that childhood memories, being well established and rehearsed, are relatively impervious to mood bias no matter how they are elicited. In this study we examined whether different methods of eliciting childhood memories (i.e., free recall and questionnaire-cued) are differentially susceptible to mood bias. To this aim, we used a mood induction procedure to induce depressed, neutral, and elated mood and assessed childhood memories both before and after the mood induction using both questionnaires and free recall to elicit memories. Results suggested that memories elicited by means of free recall as well as by means of questionnaire-cued recall were susceptible to depressed and elated mood bias. The implications for research addressing the link between childhood experiences and depression are discussed. 相似文献
862.
The development of a campus-based Substance Abuse Prevention Program (SAPP) is discussed. The program has been designed in accordance with recommendations made by prominent authorities in this field, keeping in mind the needs of the campus at which the program is located. Suggestions for developing such programs are provided. 相似文献
863.
This study examined whether chronic physical exercise activity is associated with better neurocognitive performance in older adults. One hundred five men participated in 1 of 3 age groups (18-28, 35-45, and 60-73). For each age group, subjects were classified as high or low in fitness on the basis of self-reported activity levels and the results of a submaximal bicycle ergometer test. A comprehensive battery of neuropsychological tests was administered to each subject, and older subjects scored significantly lower than the younger groups on most tests. Significant differences between high- and low-fit subjects were found only on tasks with heavy visuospatial demands, and these differences were most notable in the older adult group. These findings suggest that participation in aerobic exercise activity selectively preserves some cognitive functions that normally decline with age. The benefits of activity appear to be most evident on tasks that require visuospatial processing. 相似文献
864.
Ann Marie Ryan Ph.D. 《Journal of business and psychology》1992,6(3):371-386
Recent research on individual psychological assessments for personnel decision-making purposes has indicated a great deal of variability in practice. This study compared the responses of psychologists who evaluated the same set of assessment protocols on the basis of graduate training and professional affiliation. Results indicated few differences in evaluations of those assessed or in the way assessments were conducted. Concerns about training for and the practice of individual assessment are discussed. 相似文献
865.
866.
Susan E. Bernick 《希帕蒂亚:女权主义哲学杂志》1992,7(1):1-15
Catharine MacKinnon's investigation of the role of sexuality in the subordination of women is a logical culmination of radical feminist thought. If this is correct, the position of her work relative to radical feminism is analogous to the place Parmenides's work occupied in ancient Greek philosophy. Critics of MacKinnon's work have missed their target completely and must engage her work in a different way if feminist theory is to progress past its current stalemated malaise. 相似文献
867.
The purpose of this pilot study was to assess the effectiveness of a brief test user orientation program on increasing service station managers' familiarity with a few key employment testing issues, including their familiarity with theModel Guidelines for Preemployment Integrity Testing Programs. The obtained results reveal that even a brief orientation program was able to significantly increase the managers' stated degree of familiarity with testing issues. 相似文献
868.
869.
Marcel A. G. van Aken 《欧洲人格杂志》1992,6(4):267-282
The development of competence was studied in a longitudinal sample of 98 children, with measurement points when the children were 7, 10, and 12 years old. Competence was defined in terms of adequate adaptation to developmental tasks, both on a general and on a domain-specijic level. The general form of competence was measured by ego-resiliency, reflecting fexibility and ability to solve developmental problems Domain-specific competencies were measured by school achievement and social preference. The results showed that ego-resiliency was related to the two domain-specific competencies, although the hypothesized causal direction from general competence to specific competencies was not supported. Both domain-specific competencies were found to have a feedback effect on ego-resiliency. This feedback effect was stronger for social preference. These results suggest a transactional relationship between general and domain-specific competencies, and point to the importance of domain-specific competencies (especially social preference by the peer group) in the development of general competence in the child. 相似文献
870.
Paul A. M. van Lange 《欧洲人格杂志》1992,6(5):371-379
Kelley and Stahelski's (1970) triangle hypothesis states that competitors hold homogeneous views of others by assuming that most others are competitive, whereas cooperators or pro-social people hold more heterogeneous views by assuming that others are either cooperative or competitive. To evaluate the triangle hypothesis, this study examines differences between pro-socials, individualists, and competitors not only in their expectations about others' choice behaviour, but also in the confidence with which such expectations are held. It was found that pro-social subjects expected more cooperation than individualists and competitors. More importantly, as predicted on the basis of the triangle hypothesis, pro-socials were less confident about their expectations than competitors, with individualists holding intermediate levels of confidence. 相似文献