全文获取类型
收费全文 | 44644篇 |
免费 | 1702篇 |
国内免费 | 20篇 |
专业分类
46366篇 |
出版年
2019年 | 463篇 |
2018年 | 683篇 |
2017年 | 724篇 |
2016年 | 759篇 |
2015年 | 561篇 |
2014年 | 666篇 |
2013年 | 3406篇 |
2012年 | 1159篇 |
2011年 | 1233篇 |
2010年 | 790篇 |
2009年 | 738篇 |
2008年 | 1077篇 |
2007年 | 1063篇 |
2006年 | 965篇 |
2005年 | 880篇 |
2004年 | 845篇 |
2003年 | 831篇 |
2002年 | 885篇 |
2001年 | 1308篇 |
2000年 | 1260篇 |
1999年 | 996篇 |
1998年 | 456篇 |
1997年 | 455篇 |
1996年 | 472篇 |
1992年 | 884篇 |
1991年 | 844篇 |
1990年 | 827篇 |
1989年 | 771篇 |
1988年 | 799篇 |
1987年 | 733篇 |
1986年 | 787篇 |
1985年 | 770篇 |
1984年 | 643篇 |
1983年 | 582篇 |
1982年 | 436篇 |
1981年 | 458篇 |
1979年 | 721篇 |
1978年 | 563篇 |
1977年 | 475篇 |
1976年 | 472篇 |
1975年 | 582篇 |
1974年 | 754篇 |
1973年 | 792篇 |
1972年 | 604篇 |
1971年 | 621篇 |
1970年 | 592篇 |
1969年 | 598篇 |
1968年 | 751篇 |
1967年 | 673篇 |
1966年 | 673篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
103.
Comparison of response formats for Multidimensional Health Locus of Control Scales: six levels versus two levels 总被引:1,自引:0,他引:1
Two formats of the Multidimensional Health Locus of Control (MHLC) Scales were administered to 54 college students. Each subject completed the MHLC Scales in the standard 6-level response format (ranging from strongly disagree to strongly agree) and in a revised 2-level format (ranging from disagree to agree). Comparisons of internal consistency measures, principal components, and classification of subjects into groups indicate that the 2-level response format yields comparable data to those obtained with the 6-level format, particularly when classification of subjects is the goal. 相似文献
104.
105.
The relationship between primary process thinking and two measures of anxiety was investigated in fourth- and fifth-grade children. Holt's Scoring System for Primary Process Responses on the Rorschach was the measure of primary process thinking. The major hypotheses were supported for boys in that frequency of expression of primary process material was positively related to behavioral manifestations of anxiety as measured by the Teacher's Rating Scale. Also, controlled access to and integration of primary process was negatively related to teacher's ratings of anxiety. There were no significant results for girls. Primary process measures were not related to the State-Trait Anxiety Inventory for Children. Possible reasons for the different relationships between the primary process measures and the anxiety measures are discussed. 相似文献
106.
107.
In three experiments we examined depressed individuals' mental control abilities and strategies. Experiment 1 revealed that although depressed college students were initially successful in suppressing negative material, they eventually experienced a resurgence of unwanted negative thoughts. Analysis of subjects' stream-of-consciousness reports indicated that this resurgence was associated with the use of negative thoughts as distracters from the unwanted item. In Experiment 2 depressed subjects acknowledged that positive distracters were more effective than negative ones in suppressing negative thoughts. This acknowledgement suggests that depressed subjects in Experiment 1 did not deliberately focus on negative distracters but that those thoughts automatically occurred because they were highly accessible. Experiment 3 demonstrated that depressed subjects' use of positive distracters could be increased somewhat when we provided such distracters and made them easily accessible. Taken together, the findings suggest that depression involves an enhanced accessibility of interconnected negative thoughts that can undermine mental control efforts. 相似文献
108.
109.
Social status variables have been shown to influence attributional judgments, but their effects have been demonstrated almost entirely in experimental settings. The influence of such statuses in experimental settings may differ from their influence in natural settings. We examined the influence on attributional judgments of the status characteristics of both subjects and actors in conjunction with variations in the degree of “real world” characteristics of both subjects and social context. These comparisons were drawn through a partial replication of earlier research investigating the effects of a social status variable, victim sex, and a situational variable—type of assault—on attributions about an assault victim. The social status characteristic, victim sex, had less influence on attributions in an adult juror sample than in a student sample and testimony-related characteristics were more influential in the adult juror sample than in the student sample. Thus, the categories of variables that influence attributions appear to depend on the context of judgment and on the breadth of subjects' life experience. These findings are discussed and we conclude with the caution that careful identification of the differences produced by context and subject characteristics is necessary to support generalization of laboratory-based research. 相似文献
110.
Traits and states are concepts that people use to both describe and understand themselves and others. We show that people view these concepts as prototype-based categories that have a graded internal structure and fuzzy boundaries and identify a set of attributes that define the prototypical cores of two categories: traits and states. Prototypical traits are stable, long-lasting, and internally caused. Prototypical states are temporary, brief, and caused by external circumstances. These prototypes are not defined by averages, as the family-resemblance principle would suggest, but by ideal (or extreme) attribute values. Like other ideal-based categories, traits and states serve particular goals. Trait concepts permit people to predict the present from the past; state concepts identify those behaviors that can be controlled by manipulating the situation. These two complementary schemas are part of the extensive theory of psychological causality that is implicit in language. Abstract social concepts differ from object categories in their category standards, the nature of their attributes, and the interrelations among those attributes. 相似文献