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   803篇
  免费   17篇
  国内免费   1篇
  2024年   1篇
  2023年   2篇
  2022年   3篇
  2021年   5篇
  2020年   8篇
  2019年   7篇
  2018年   15篇
  2017年   13篇
  2016年   14篇
  2015年   4篇
  2014年   10篇
  2013年   54篇
  2012年   5篇
  2011年   4篇
  2010年   4篇
  2009年   16篇
  2008年   18篇
  2007年   12篇
  2006年   13篇
  2005年   5篇
  2004年   8篇
  2003年   3篇
  2002年   6篇
  2001年   2篇
  2000年   2篇
  1999年   1篇
  1998年   1篇
  1996年   1篇
  1994年   2篇
  1993年   3篇
  1991年   1篇
  1988年   1篇
  1987年   1篇
  1985年   45篇
  1984年   50篇
  1983年   39篇
  1982年   41篇
  1981年   53篇
  1980年   47篇
  1979年   47篇
  1978年   53篇
  1977年   40篇
  1976年   48篇
  1975年   32篇
  1974年   41篇
  1973年   40篇
排序方式: 共有821条查询结果,搜索用时 234 毫秒
681.
Five-year-olds, as compared to adults, have displayed a striking constraint on short-term recognition memory for briefly presented visual information. In the present study, a recall paradigm was also examined to test the generality of this constraint. Additionally, we examined the possibility that forced verbal report might differentially enhance children's performance. Evidence of improved performance in children would suggest that a verbal encoding strategy, used by adults only during the recognition task, is activated in children in a recall task. Though recall memory performance of young children did surpass recognition memory levels, the same was true for adults with the relative adult-child difference remaining constant across conditions. It was concluded that processes other than verbal labeling (e.g., buffer storage, organization, retrieval) are probably more responsible for age differences in immediate memory performance than labeling, per se.  相似文献   
682.
Accuracy of imitation by sixty kindergarten subjects was examined using a task in which a female adult modeled a series of pegboard patterns and delivered accuracy-contingent feedback. Four methods of feedback and a nofeedback control were compared. All four feedback groups were more accurate than the control group. The feedback conditions were: positive only, negative only, positive and negative, and negative with correction. The last condition resulted in greater accuracy than the others, which did not differ. All groups, including the control, improved significantly over trials. Accuracy of performance on interspersed, nonfeedback trials was maintained by feedback to the other patterns. Finally, imitation of repeating stimulus patterns did not differ from performance with nonrepeating patterns.  相似文献   
683.
Analysis of 24 spontaneous speech samples from children at 24 and 30 months revealed a correlated progression in the form, function and meaning of modifiers used with increased language development. Predicate adjectives were used to comment on transitory states of objects and predominated in the early speech samples. Attributive adjectives were used to subdivide classes or to specify among particular instances within classes on the basis of physical characteristics such as size, by use of a conventional type name, or by use of a possessive. Attributives predominated in the later speech samples. Differential use of a particular form appears to be a function of its cognitive and communicational usefulness rather than its syntactic derivation.  相似文献   
684.
Four major types of interaction of stimulus dimensions based on perceptual research are described: integral, configural, separable, and asymmetric separable. Implications of these interactions for concept and choice processes are discussed. With regard to concept learning, it is argued that integral or configural interactions are desirable within the set of relevant and within the set of irrelevant dimensions used to generate stimuli, but that relevant dimensions should be separable from irrelevant dimensions. With regard to choice processes, integral or configural dimensions produce choices based on ordinary distance relations or equivalent parallel processing of dimensions. With separable dimensions, however, serial processing is at least possible; and such processing can lead to choices in which the subset of stimuli and the order of processing of dimensions affects the choice outcomes.  相似文献   
685.
A semantic differential was used to measure the affective responses of vocationally committed male students in medicine, business, and engineering to occupational concepts representing the fields of medicine, business, engineering, the clergy, and law enforcement. A factor analysis of the data indicated that the students responded to the concepts with the Evaluative, Activity, and Potency dimensions of affective meaning. It was found that the groups differed significantly in the intensity and direction of their affective responses to the occupational concepts on the Evaluative and Activity dimensions. An examination of the nature of the group differences indicated that they held different affective meanings for their respective vocational choices, and for other occupational concepts as well. The medical students responded to medicine as good, potent, and active; the business students to business as bad, potent, and active, and the engineering students to engineering as good, weak, and active. The possible relationship of affective meaning to vocational behavior was discussed.  相似文献   
686.
The hypotheses of informational cognitive control, based on the idea that being able to predict the occurrence of an unpleasant event facilitates a reduction of its impact, has not received clear support in previous research. The present experiment investigated the effects of three variables on subjective reactions to mild electric shock: (1) temporal uncertainty about when the shocks would occur, (2) the period of delay before the shock, and (3) attention to either the sensory properties of the shocks or emotional reactions to them. The results showed that low temporal uncertainty and short periods of delay led to reduced anxiety during the period preceding the shock but did not reduce the reported intensity of the shocks themselves. Higher ratings of both shock intensity and distress were obtained when the focus of attention was on the sensory properties of the stimuli rather than on the affective reactions to them. It was concluded that (i) the attentional focus of the subject is an important determinant of rated stimulus effects, and (ii) prediction, though it may reduce prestimulus anxiety, has no real effect on the impact of the stimulus itself.  相似文献   
687.
Do individuals conform to various norms of reward allocation not necessarily in response to internal standards but rather, to win approval from relevant others? This study examined the role of self-presentation in mediating equity, equality, and self-interest within reward allocations. It was hypothesized that when others were aware of a subject's behavior, distributions would reflect that person's normative definition of the situation. Subjects allocated a $5.00 payment among themselves and three partners with unequal performance inputs. Informing the experimenter of one's decisions resulted in more equitable divisions, characterizing the employment-productivity relationship between experimenter and subject. When co-workers, defined as peers, were aware of allocations, an equality-based solution was favored. Allocators enhanced their own rewards beyond normative values only when their choices were completely private. Evidence was also found of postdecisional cognitive changes which maintained the belief that one acted justly in giving each partner what he deserved. These findings are consistent with the proposition that individuals maximize their own rewards, defined broadly to include social impression-formation and intrapsychic benefits. Apparently, self-presentational concerns mediate the relative salience of equity, equality, and self-interest in social exhange.  相似文献   
688.
Subjects performed a proofreading task and evaluated its difficulty both beforehand and afterwards. They were overpaid or equitably paid by an experimenter who was or was not directly responsible for the level of pay they received, and who they believed would or would not see their post-test ratings. All subjects knew the experimenter would grade their task performance. Consistent with equity theory, overpaid subjects rated the task as having been more difficult than they had expected and did higher quality work than did equitably paid subjects. However, subjects who thought the experimenter would see their ratings (Aware condition) rated it as more difficult and performed more poorly on it than those who thought she would not see them (Unaware condition). Reported task difficulty increased among overpaid subjects under aware conditions, remained stable among overpaid subjects under unaware conditions, and decreased for equitably paid subjects. These findings suggested that what appears to be “equity-restoration” may be a self-presentation strategy designed to win the experimenter's approval, and that task ratings rather than performance will be used for this purpose when they can be communicated to the experimenter. The experimenter's responsibility for the subject's pay had no effect in the present study.  相似文献   
689.
Fifty-six prekindergarten and 174 kindergarten children learned to choose either the card with more or the card with fewer elements in simultaneous discrimination problems. Learning was faster when the card with more elements was positive, particularly when a zero-element card was involved. This difference appeared to be attributable in part to an initial preference for “more.” On transfer trials involving all possible pairings of the training cards, subjects generally performed as though their choices were governed by the concept “more” or “fewer”. This tendency increased with age and with experience in the situation, even though conditions made verbal mediation appear unlikely.  相似文献   
690.
Two experiments were designed to consider the effects of chronic high residential density on responses to choice and controllable and uncontrollable outcomes. In the first study, children responded to obtain candy as reinforcement and, during certain phases of the procedure, were able to select a schedule, if they chose, which allowed them to pick their own candy rather than having the experimenter select candy for them. Children who lived in high residential density were significantly less likely than children from less dense homes to try to control the administration of available outcomes. In the second study, children were preexposed to a solvable or unsolvable cognitive learning task and tested for how well they subsequently learned a solvable problem. Children from high density homes did significantly more poorly than less crowded children when the first problem was unsolvable. It was suggested that chronic density limits prediction and control in the home environment and consequently leads to the development of decreased expectancies for contingency between response and outcome in other control-relevant situations.  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