首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   195812篇
  免费   8390篇
  国内免费   162篇
  204364篇
  2020年   2796篇
  2019年   3463篇
  2018年   3835篇
  2017年   4286篇
  2016年   4838篇
  2015年   3938篇
  2014年   4815篇
  2013年   23518篇
  2012年   5376篇
  2011年   4813篇
  2010年   4277篇
  2009年   4980篇
  2008年   4919篇
  2007年   4512篇
  2006年   4796篇
  2005年   4688篇
  2004年   4141篇
  2003年   3771篇
  2002年   3600篇
  2001年   4473篇
  2000年   4281篇
  1999年   3861篇
  1998年   2955篇
  1997年   2752篇
  1996年   2631篇
  1995年   2485篇
  1994年   2455篇
  1993年   2397篇
  1992年   3186篇
  1991年   3036篇
  1990年   2872篇
  1989年   2727篇
  1988年   2682篇
  1987年   2681篇
  1986年   2653篇
  1985年   2912篇
  1984年   2796篇
  1983年   2529篇
  1982年   2487篇
  1981年   2428篇
  1980年   2269篇
  1979年   2548篇
  1978年   2373篇
  1977年   2285篇
  1976年   2098篇
  1975年   2309篇
  1974年   2395篇
  1973年   2290篇
  1972年   1863篇
  1971年   1731篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
831.
A new instrument designed to assess paranoid thought in college students, together with reliability and validity data, was presented in Study 1. A single general factor accounted for a substantial portion of the variance in the full scale. Public self-consciousness was consistently and significantly correlated with the present measure of paranoia. In Study 2, both pretested paranoia and public self-consciousness were related to feelings of being watched (a classical manifestation of paranoia), although public self-consciousness had an effect only when there was a 2-way mirror present. In Study 3, self-attention, experimentally induced using a story construction task, again resulted in a heightened sense of being observed. Discussion focuses on paranoid cognition as characteristic of everyday thought and the implications of self-attention for social perception processes.  相似文献   
832.
A survey of 821 same-sex female twin pairs from a population-based registry assessed 8 dimensions of social support and social integration. Twin analyses documented significant common environmental influences on 5 of these 8 measures and significant genetic influences on 5 of the 8. A decomposition of the multiplicative association between support and a measure of stressful life experiences in predicting depressed mood--an association typically interpreted as providing evidence for a stress-buffering effect of social support--shows clearly that it is the environmental and genetic factors that cause support, rather than support itself, that buffer the effects of stress on mood in most cases. We discuss the implications of this result for future research on the relationship between social support and psychopathology.  相似文献   
833.
Two pairs of studies examined effects of perspective taking in communication, using a 2-stage methodology that first obtained people's estimates of the recognizability to others of specific stimuli (public figures and everyday objects) and then examined the effects of these estimates on message formulation in a referential communication task. Ss were good at estimating stimulus identifiability but were biased in the direction of their own knowledge. The amount of information in a referring expression varied inversely with the perceived likelihood that addresses could identify the target stimulus. However, effects were less strong than anticipated. Although communicators do take others' knowledge into account, the extent to which they do so involves a trade-off with other sorts of information in the communicative situation.  相似文献   
834.
This study examined the relation between personal striving level and psychological and physical well-being. Level refers to the degree of generality versus specificity of one's goal strivings. In 3 studies, 188 Ss generated lists of their personal strivings, which were then rated on specificity level. High-level striving was associated with more psychological distress, particularly depression. Low-level striving was related to higher levels of physical illness. Correlations between striving level and self-reported symptoms were generally not as strong as those between level and the more objective illness indicators. High-level strivings were seen as more difficult and requiring more effort than low-level strivings. Results are interpreted in terms of control theory, goal-setting theory, and the repressive personality style.  相似文献   
835.
This study reanalyzes kinematically (via film) the pre- and postoperative locomotor behavior of 4 of the 10 monkeys with partial spinal cord lesions (T8) briefly described by Eidelberg, Walden, and Nguyen (1981). The behavior of the remaining 6 monkeys is qualitatively described. The analysis reveals that 5 of the animals initially exhibited unilateral hind limb stepping. Hind and forelimb cycle durations often differed postoperatively; the hind limbs commonly showed increased values, whereas forelimb cycle durations were reduced: ipsilateral interlimb phase values were usually inconsistent. A review of prior studies of primate spinal cord lesions indicates that sparing of the ventrolateral quadrant may not be essential for locomotor recovery (cf. Eidelberg, Walden, & Nguyen, 1981). Furthermore, this review as well as the kinematic analysis indicates that primates with very significant spinal lesions can stilI exhibit locomotor movements. Thus, although the primate's spinal cord seems less able than other mammals' to readily organize locomotor movements (Eidelberg, Walden, & Nguyen, 1981), the total absence of stepping in primates with completely transected cords is unexpected and warrants further research.  相似文献   
836.
Affect, personality, and social activity.   总被引:3,自引:0,他引:3  
These studies examined relations between social activity and state and trait measures of Positive and Negative Affect. In Study 1 Ss completed scales relevant to 3-factor models of personality and a weekly mood and social activity questionnaire for 13 weeks. In Study 2 Ss completed measures of the 5-factor model of personality and a daily mood and social activity survey for 6-7 weeks. In within- and between-Ss analyses, socializing correlated significantly with state measures of Positive Affect and with trait measures of Extraversion/Positive Emotionality. These relations were relatively general across various types of positive affect and social events; however, specific types of social events also were differentially related to affect. In contrast, social activity had no consistent association with measures of Negative Affect or the other personality dimensions. The results support a temperamental view of Extraversion.  相似文献   
837.
The proposition was tested that depressives make predictions about the future based on a pessimistic future-event schema. Participants varying in depression predicted whether positive and negative events would happen to them (or to an average person) in the future by pressing yes or no at a computer terminal as quickly as possible, either under a concurrent attentional load or under no such load. As hypothesized, depressives predicted more negative events and fewer positive events than did mild depressives or nondepressives and showed greater automaticity in their predictions. That is, the attentional load did not increase depressives' response latencies for either negative or positive events, even though it did so reliably for both mildly depressed and nondepressed individuals. Depressives may thus possess a highly developed future-event schema that operates efficiently in enabling future-event predictions.  相似文献   
838.
Three studies were conducted to assess the proposition that self-esteem serves an anxiety-buffering function. In Study 1, it was hypothesized that raising self-esteem would reduce anxiety in response to vivid images of death. In support of this hypothesis, Ss who received positive personality feedback reported less anxiety in response to a video about death than did neutral feedback Ss. In Studies 2 and 3, it was hypothesized that increasing self-esteem would reduce anxiety among individuals anticipating painful shock. Consistent with this hypothesis, both success and positive personality feedback reduced Ss' physiological arousal in response to subsequent threat of shock. Thus, converging evidence of an anxiety-buffering function of self-esteem was obtained.  相似文献   
839.
The Wonderlic Personnel Test (1983) was administered twice over a 3-week period under conditions in which the activity of the second test was experimentally manipulated. Data from 302 undergraduates were analyzed. The standard test-retest reliability coefficient, .872, was not significantly different from the coefficients obtained from three other groups that, on the second test, were each given specific instructions: (a) to reason out the answers (pure reassess condition); (b) to use reasoning, memory of their initial responses, or both (reassess and memory); or (c) to take an alternate form of the test (parallel). However, the standard test-retest reliability coefficient was higher, p less than .10, than the coefficient obtained from a condition (pure memory) in which subjects were instructed to duplicate their previous responses, using only memory. Although the subjects in the test-retest and combined reassess and memory conditions reported recalling previous answers for 20-25% of the items on the second test, it was concluded that conscious repetition of specific responses did not seriously inflate the estimate of test-retest reliability.  相似文献   
840.
We explored the low correlation among different types of childhood depression measures at the item level. The items from the Children's Depression Inventory (CDI), Peer Nomination Inventory of Depression (PNID), and the Child Behavior Checklist-Teacher Report Form (CBCL-T) were combined, and both first- and second-order factor analyses were conducted. Results indicate that self-report, peer-report, and teacher-report assessments of depression measure generally uncorrelated constructs. Second-order analysis suggests that depression as a global construct is being measured to some degree by items from all three instruments. Canonical analysis was employed to identify items that best predicted CDI, PNID, and CBL-T summary scores simultaneously. Also, the relationship between specific items with similar content was investigated. Results from these analyses generally supported a conclusion that the three types of measures yield scores that are primarily independent and that the use of summary scores is not masking stronger relationships within measures. These findings have implications for clinical practice and construct elaboration.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号