全文获取类型
收费全文 | 798篇 |
免费 | 63篇 |
国内免费 | 1篇 |
出版年
2024年 | 4篇 |
2023年 | 5篇 |
2021年 | 19篇 |
2020年 | 29篇 |
2019年 | 32篇 |
2018年 | 38篇 |
2017年 | 35篇 |
2016年 | 32篇 |
2015年 | 34篇 |
2014年 | 33篇 |
2013年 | 84篇 |
2012年 | 43篇 |
2011年 | 39篇 |
2010年 | 44篇 |
2009年 | 44篇 |
2008年 | 29篇 |
2007年 | 26篇 |
2006年 | 26篇 |
2005年 | 23篇 |
2004年 | 20篇 |
2003年 | 21篇 |
2002年 | 18篇 |
2001年 | 13篇 |
2000年 | 7篇 |
1999年 | 6篇 |
1998年 | 7篇 |
1997年 | 5篇 |
1996年 | 5篇 |
1995年 | 4篇 |
1994年 | 6篇 |
1993年 | 4篇 |
1992年 | 7篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 5篇 |
1987年 | 8篇 |
1986年 | 6篇 |
1985年 | 5篇 |
1983年 | 6篇 |
1981年 | 5篇 |
1979年 | 6篇 |
1977年 | 4篇 |
1975年 | 5篇 |
1974年 | 4篇 |
1973年 | 4篇 |
1971年 | 3篇 |
1969年 | 4篇 |
1967年 | 4篇 |
1966年 | 3篇 |
1964年 | 3篇 |
排序方式: 共有862条查询结果,搜索用时 15 毫秒
171.
Recently both neurophysiological and psychophysical theories have suggested that the sensitivity of receptors, or of the whole organism, may change through “efferent control” or as a result of “motivation.” A psychophysical method has been devised to investigate changes in a listener’s ability to detect signals in a noisy background, which are elicited “on demand” by the E, and when the time course of the changes may be in the order of seconds rather than minutes orhours. Observed effects, which are consistent with the hypotheses of active control of sensitivity, are found to be orderly but quite small, generally less than that associated with a 1–2 dB increase in the level of a tonal signal. While the average increment in performance is thus slight, it is found that the variance between Ss is significantly reduced when strong motivating stimuli are introduced. This reduction in variance may reflect an upper limit on the performance of real listeners, which might be fruitfully compared with the theoretical limits proposed in the theory of signal detectability. 相似文献
172.
The effects of irrelevant information (0, 1, 2, or 3 bits stimulus) on absolute judgments of size were measured at different levels of discrimination difficulty. The stimuli were 7 small circular spots of light of different sizes, selected from an eaual-discriminability scole, and arranged into 6 pairs that represented different levels of stimulus dissimilarity. Three of the pairs comprised a low-dissimilarity (LD) subgrouping in which different lepels of dissimilarity and discriminability were confounded, whereas the remaining three pairs comprised a high-dissimilarity (HD) subgrouping in which different levels of dissimilarity occurred at a single high level of discriminability. Different colors were used to provide the four levels of irrelevant information; 240 Ss (10 in each of the 24 experimental conditions) made absolute judgments of size under the classical procedure for the method of single stimuli. Separate analyses of errors, reaction times, and rates of information transmission indicated that irrelevant information had an increasingly detrimental effect on absolute judgments as discrimination difficulty was increased (in the LD subgroup), but essentially no effect where discriminations were easily modefin the HD subgroup). 相似文献
173.
The computation of intercorrelation matrices involving large numbers of variables and the subsequent factoring of these matrices present a formidable task. A method for estimating factor loadings without computing the intercorrelation matrix is developed. The estimation procedure is derived from a theoretical model which is shown to be a special case of the multiple-group centroid method of factoring. Empirical checks have indicated that the model, even though it makes some stringent assumptions, can be applied to a variety of variables found in psychological factoring problems. It has been found to be particularly useful in factoring test items. 相似文献
174.
175.
In both military and industrial work settings, it has become desirable, and in many instances necessary, to require sustained performance beyond the apparently optimal 8-h workday. Research in this area may be viewed historically as having been focused in three major areas: (1) determining appropriate methodologies for measuring sustained performance, (2) investigating factors that influence sustained performance, and (3) searching for ways to enhance performance during sustained operations. On the basis of discussions held in Toronto in August 1984, observations are drawn and recommendations are made concerning the directions and content of future research. 相似文献
176.
Ben Page 《International Journal for Philosophy of Religion》2018,84(1):31-55
The Euthyphro objection is often perceived, rightly or wrongly, as the king objection to theistic meta-ethics. This paper proposes a response that hasn’t been much explored within the contemporary literature, based on the metaphysics of dispositions and natural law theory. The paper will first contend that there is a parallel between ways theists conceptualise God’s role in creating laws of nature and the ways God creates goods. Drawing upon these parallels I propose a possible response to the dilemma, where this response parallels the dispositionalist response as to how God creates laws of nature. I do this by first explicating a natural law theory of goodness, then suggesting how the ontology of dispositions can be used in a novel way to account for goods, and finally by explaining how all this relates to the dilemma. I conclude the paper by posing some objections to myself and providing some replies. 相似文献
177.
178.
Beyond the reactive‐proactive dichotomy: Rage,revenge, reward,and recreational aggression predict early high school bully and bully/victim status
下载免费PDF全文
![点击此处可从《Aggressive behavior》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Kevin C. Runions Christina Salmivalli Therese Shaw Sharyn Burns Donna Cross 《Aggressive behavior》2018,44(5):501-511
179.
Maureen C. Kenny Roberto L. Abreu Claire Helpingstine Angel Lopez Ben Mathews 《Journal of counseling and development : JCD》2018,96(4):372-387
Although counselors in 44 states are mandatory reporters of child maltreatment, they may lack an understanding of their legally designated role. This article presents the results of a systematic review of child maltreatment reporting laws in all 50 states and the District of Columbia. The authors apply relevant legislation to real‐life contexts for counselors. 相似文献
180.
Ben Mernick Abigail Pine Tamar Gendler Tomer Shechner 《Journal of child and family studies》2018,27(6):1794-1804
This study examined the psychometric properties of a Hebrew version of the Behavioral Inhibition Questionnaire (BIQ) in a non-clinical sample of Israeli children and adolescents. We produced a Hebrew translation of the BIQ and collected 227 responses to it from parents of children aged 4–15. Some respondents in the larger sample also completed the Screen for Child Anxiety Related Emotional Disorders (SCARED) questionnaire (n?=?91) and the Conners’ Abbreviated Parent-Teacher (CONNERS) questionnaire (n?=?39), in addition to the BIQ. Lastly, 21 children of BIQ respondents (aged 8–14) completed a self-report version of the questionnaire. Confirmatory factor analysis (CFA) was performed to assess how well the established six correlated factor model of the BIQ applied to the sample data. The Hebrew BIQ demonstrated good internal consistency (Chronbach’s α?=?.94, n?=?227) and 3 month test–retest reliability, (r?=?.95, p?<?.001, n?=?21). It also showed both convergent validity, as scores on the BIQ were correlated with the SCARED (r?=?.66, p?<?.01. n?=?91), and discriminant validity, as BIQ scores were not correlated with the CONNERS (r?=?.24, n?=?39). Finally, mother reports of BI were significantly correlated to child reports of BI via the BIQ (r?=?.60, p?<?.01, n?=?21). Thus, through this preliminary study we demonstrated that the Hebrew version of the BIQ is an effective tool for screening for BI among Israeli children, making it a useful instrument for future research. 相似文献