全文获取类型
收费全文 | 5118篇 |
免费 | 202篇 |
国内免费 | 2篇 |
出版年
2022年 | 34篇 |
2021年 | 49篇 |
2020年 | 87篇 |
2019年 | 107篇 |
2018年 | 137篇 |
2017年 | 156篇 |
2016年 | 157篇 |
2015年 | 119篇 |
2014年 | 161篇 |
2013年 | 622篇 |
2012年 | 255篇 |
2011年 | 259篇 |
2010年 | 143篇 |
2009年 | 162篇 |
2008年 | 206篇 |
2007年 | 244篇 |
2006年 | 210篇 |
2005年 | 161篇 |
2004年 | 175篇 |
2003年 | 171篇 |
2002年 | 141篇 |
2001年 | 72篇 |
2000年 | 68篇 |
1999年 | 88篇 |
1998年 | 68篇 |
1997年 | 50篇 |
1996年 | 47篇 |
1995年 | 48篇 |
1994年 | 44篇 |
1993年 | 49篇 |
1992年 | 48篇 |
1991年 | 35篇 |
1990年 | 48篇 |
1989年 | 30篇 |
1988年 | 41篇 |
1987年 | 32篇 |
1986年 | 43篇 |
1985年 | 48篇 |
1984年 | 49篇 |
1983年 | 46篇 |
1982年 | 48篇 |
1981年 | 45篇 |
1980年 | 46篇 |
1979年 | 37篇 |
1978年 | 49篇 |
1977年 | 29篇 |
1976年 | 39篇 |
1975年 | 46篇 |
1974年 | 40篇 |
1973年 | 34篇 |
排序方式: 共有5322条查询结果,搜索用时 15 毫秒
101.
Heiko Hecht Mary K. Kaiser Martin S. Banks 《Attention, perception & psychophysics》1996,58(7):1066-1075
When an object’s motion is influenced by gravity, as in the rise and fall of a thrown ball, the vertical component of acceleration is roughly constant at 9.8 m/sec2. In principle, an observer could use this information to estimate the absolute size and distance of the object (Saxberg, 1987a; Watson, Banks, von Hofsten, & Royden, 1992). In five experiments, we examined people’s ability to utilize the size and distance information provided by gravitational acceleration. Observers viewed computer simulations of an object rising and falling on a trajectory aligned with the gravitational vector. The simulated objects were balls of different diameters presented across a wide range of simulated distances. Observers were asked to identify the ball that was presented and to estimate its distance. The results showed that observers were much more sensitive to average velocity than to the gravitational acceleration pattern. Likewise, verticality of the motion and visibility of the trajectory’s apex had negligible effects on the accuracy of size and distance judgments. 相似文献
102.
Previous studies have identified three categories of variables which influence decisions of mock jurors: type of crime, defendant characteristics, and personal characteristics of jurors. This study manipulated the following variables towards the ends of assessing their influence on mock jurors' sentencing severity: premeditated vs. unpremeditated murder, black vs. white defendant, low SES vs. high SES defendant. Only defendant SES predicted sentencing severity: low SES defendants were assigned significantly longer sentences than high SES defendants. None of the measures of juror characteristics correlated with sentencing severity. Failure to replicate significant relationships with most of these variables and sentencing severity suggest that results of studies which manipulate only one variable dimension may overestimate the influence of these variable dimensions in mock jurors' decisions. 相似文献
103.
Roy Martin 《Journal of School Psychology》1978,16(1):49-55
This paper describes consultation as an influence process and, in particular, describes the two forms of social power—expert and referent power—which allow school psychologists or any mental health professional to influence the consultees with whom they work. Several hypotheses are presented derived from social psychology research and theory on these forms of power which have practical importance for the school psychologist. 相似文献
104.
Literature on sex differences in impulsivity has tended to focus on differences between groups, while ignoring relationships beyond zero order correlations. The purpose of this study was to evaluate Maccoby's hypothesis (1966) of opposite-direction correlations where the relationship between a set of variables (e.g., impulsivity and intellectual ability) is curvilinear, with males and females being systematically distributed on opposite sides of the curve. The Primary Mental Abilities (PMA) and Matching Familiar Figures tests were administered to 44 males and 49 females. The relationship between all of the PMA subtests and impulsivity was curvilinear for males, but linear for females on all but one of the subtests. The importance and implications of examining distribution differences rather than group differences are discussed.Support for this study has come from the Office of Research Administration, University of Kansas, Grant Number 3581-5038. This paper was presented in part at the meeting of the American Psychological Association, Chicago, August 1975, Division 7. 相似文献
105.
Martin R. Adams 《Journal of Fluency Disorders》1978,3(4):265-271
This article presents a further analysis of stuttering as a phonetic transition defect. Three types of phonetic transitions are identified. Two of these occur within words and represent sites where stutterings are readily detectable. The third transition involves movement from the end of one word to the beginning of the next. Spectrographic evidence is provided to show that stuttering also occurs at points of transition of this type. The same data are interpreted relative to their implications for stuttering theory, research, and therapy. 相似文献
106.
Human subjects learned a key-pressing response in order to avoid or escape shock. The reinforcement contingencies were then changed to punishment or to regular nonpunished extinction. The locus of shock onset and offset was systematically varied during the punishment phase. More subjects reported awarencess of the change in the nonpunished extinction group. By inference, the punished groups responded more, and thus the results appear analogous to animal studies on vicious circle, self-punitive responding. Discriminability of change from acquisition to extinction appeared to affect detection of the change. 相似文献
107.
108.
Howard L. Kaplan Neil A. Macmillan C. Douglas Creelman 《Behavior research methods》1978,10(6):796-813
Signal detection theory (SDT) allows a bias-free measure of sensitivity, d′, to be simply estimated from discrimination data when certain conditions are met. The computation is not straightforward, however, in several popular discrimination designs, such as two- and four-interval same-different designs and the ABX design. The present tables, derived from the SDT models of Macmillan, Kaplan, and Creelman (1977), make possible the estimation of d’ from these complex discrimination designs. 相似文献
109.
Maryanne Martin 《Quarterly journal of experimental psychology (2006)》1978,30(2):187-200
In the first of two experiments investigating focussed attention, sets of four pairs of digits were dichotically presented to subjects who were instructed to attend to digits arriving in either the left or the right ear. Following presentation, two different report orders were used: attended followed by unattended, and unattended followed by attended. It was found that unattended items did not suffer from being recalled second rather than first. The serial position curve for unattended items was U-shaped. These results were interpreted as evidence that unattended items are not retained in a limited-capacity auditory buffer with a fast rate of loss. The experiment was repeated using visually presented pairs of letters. A similar pattern of results was obtained, consistent with the hypothesis that unattended items are recalled from a store with a large capacity and a very slow rate of loss. 相似文献
110.
Wayne Viney Neil Johnson Larry Jacobson 《Quarterly journal of experimental psychology (2006)》1978,30(4):747-754
Sixty-four male Wistar rats were given acquisition training in an enclosed straight-alley runway which could be adjusted for angles of inclination. The 2×2×2 design involved two angles of inclination in acquisition (0° and 40°) and two angles of inclination in extinction (0° and 40°). Between acquisition and extinction, half the subjects were exposed to a latent extinction procedure and half served as controls. Number of responses in a 30-min extinction session was an inverse function of effort required in extinction. Additionally, latent extinction procedures resulted in reduced resistance to extinction, but only when the effort conditions of acquisition and extinction were constant. When the effort conditions of acquisition and extinction were dissimilar, latent extinction procedures resulted in increased resistance to extinction. The results raise questions about the nature of the learning which occurs during latent extinction training. 相似文献