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11.
Kent L. Norman 《Current Psychology》1990,9(2):141-161
The introduction of hypermedia into the classroom presents both an opportunity to expand the power of teaching through electronic
facilitation of the media and a challenge to redesign the classroom and instructional environment to exploit the enhanced
features of hypermedia. This paper briefly surveys the current state of computers in the classroom and then argues that a
more integrated approach is required. To this end, the concept of an electronic teaching theater is proposed which takes advantage
of hypermedia and collaborative work environments. The aim of the electronic teaching theater is not to totally redesign the
classroom and instructional interaction, but rather to facilitate it using well understood metaphors to lay out the dynamics
of classroom interaction on the electronic media and to use the results from research in human/computer interaction to design
the interface. To facilitate the application of hypermedia, a model of instructional interaction among the students, the instructors,
the course material, and the products of instruction is presented. A number of component models pertaining to course preparation,
lectures, note taking, and other instructional activities are then discussed that should prove useful in designing the electronic
classroom. The origin of these models is the mental representation of the interaction as perceived by the teacher and the
student. The idea is to start with such models as a base metaphor, to instantiate the metaphors in the electronic classroom,
and then to explore innovations in the technology that go beyond the strict application of the metaphor.
This work was supported in part by a grant from AT&T to the University of Maryland during the author’s visit to the Medical
Research Council—Applied Psychological Unit, Cambridge, England. Appreciation is expressed to Patricia Wright and Richard
M. Young for their helpful comments on this paper. 相似文献
12.
This paper describes a pilot follow-up study of a behavioral program for 20 young people with learning disabilities and challenging behavior. Eighteen participants made good overall improvement during the treatment period, and this was partially maintained at follow-up. Eight had continued to improve, eight had deteriorated slightly and four had deteriorated markedly. Adaptive skills were generally maintained. The reemergence of challenging behaviors explained the difference between the Good and Poor Outcome groups. Those participants in the Good Outcome group were younger on admission, scored lower on adaptive skills and higher on challenging behaviors. In addition they had remained on the treatment programme for 12–18 months and had been discharged from the Unit for longer. The overall level of independent living had increased from preadmission and the majority of participants were living in less restrictive placements. These results confirm and extend the findings of previous research. The paper concludes by highlighting the need for more detailed longitudinal follow-up studies in this area. 相似文献
13.
Shaping and fading techniques were employed to replace written instructions used in computerized behavioral tests. Apple Macintosh computers and HyperCard with Pascal extensions were chosen as the development environment to implement the new techniques. Initial Findings demonstrate the effectiveness and relative efficiency of shaping techniques to teach correct performance on the Symbol-Digit Test. 相似文献
14.
15.
The reaction-time probability effect on isolated trials was found to be asymmetrical in an experiment on 64 college students. There was a large drop in RT for a high-probability probe trial embedded in a block of low-probability trials, but a much smaller rise for a low-probability trial embedded in high-probability trials. Thus, low- but not high-probability responses seem to be influenced by characteristics of the trial block. If the basis of the probability effect were the strategic placement of the criterion for response initiation, symmetrical results should have been obtained. A motivational account which accords with the present data is that the subject is ordinarily willing to prepare but is averse to doing so in some (not entirely specified) low-probability circumstances. 相似文献
16.
Philip H. Bornstein Paul J. Bach Miles E. McFall Patrick C. Friman Patricia D. Lyons 《Journal of applied behavior analysis》1980,13(1):171-176
Six mentally retarded adults, equally divided into two treatment groups, were provided with individualized social skills training programs. Treatment, evaluated via a multiple-baseline design strategy, was sequentially and cumulatively applied across target behaviors over a four-week intervention period. Behavioral observation probes and social validation measures served as the primary dependent variables. Results indicated that (a) treatment was effective for virtually all behaviors across all subjects, (b) improvements occurred for both training and generalization scenes, and (c) behavioral performance was maintained one month following the termination of treatment. 相似文献
17.
Fifty-six fourth-grade children were categorized as either high or low in trait anxiety and then assigned to a self-instruction treatment, minimal-treatment, or no-treatment control condition. At both pretest and posttest, the subjects recited a memorized poem while being videotaped with the expectation that they would be judged on their performance. State anxiety measures, a behavior rating of anxiety, a measure of performance accuracy and the time involved in reciting a poem were obtained at both pretest and posttest. Contrary to expectation, the self-instructional training resulted in subjects' exhibiting greater signs of behavioral anxiety, subjects' hurrying through the task (taking less time to recite the poem) and high trait-anxiety subjects' reporting more state anxiety while anticipating reciting the poem. Correlational analyses indicated that trait anxiety was significantly related to the measures of state anxiety and the behavior rating of anxiety but not to performance accuracy. 相似文献
18.
Lynn L. Peterson Kent O. Dana Joan S. Reisch Thomas Hibberd Maurice Korman Paul I. Munves Alvin J. North Thomas A. Van Hoose Frank Trimboli 《Behavior research methods》1981,13(4):485-498
An information processing system for a psychiatric emergency room is described. Several studies are presented that show the utility of the system. In the first study, variables involved in diagnosis are explicated. The second study attempts to determine the characteristics that distinguish recidivists from nonrecidivists at an emergency room. The third study attempts to find patient variables related to success in short-term treatment programs. The final study is aimed at discovering whether there are psychopathological effects related to the use of inhalants. Together, these studies show the potential of a mental health information system for learning more about the nature of mental disorders and their treatment. 相似文献
19.
Steven W. Zucker Kent A. Stevens Peter Sander 《Attention, perception & psychophysics》1983,34(6):513-522
The Gestalt studies demonstrated the tendency to visually organize dots on the basis of similarity, proximity, and global properties such as closure, good continuation, and symmetry. The particular organization imposed on a collection of dots is thus determined by many factors, some local, some global. We discuss computational reasons for expecting the initial stages of grouping to be achieved by processes with purely local support. In the case of dot patterns, the expectation is that neighboring dots are grouped as a function of proximity and similarity of contrast, by processes that are independent of the overall organization and the various global factors. We describe experiments that suggest a purely local relationship between proximity and brightness similarity in perceptual grouping. 相似文献
20.
Kent A. Stevens 《Attention, perception & psychophysics》1983,33(3):241-250
Surface slant (the angle between the line of sight and the surface normal) is an important psychophysical variable. However, slant angle captures only one of the two degrees of freedom of surface orientation, the other being thedirection of slant. Slant direction, measured in the image plane, coincides with the direction of the gradient of distance from viewer to surface and, equivalently, with the direction the surface normal would point if projected onto the image plane. Since slant direction may be quantified by the tilt of the projected normal (which ranges over 360 deg in the frontal plane), it is referred to here assurface tilt. (Note that slant angle is measured perpendicular to the image plane, whereas tilt angle is measured in the image plane.) Compared with slant angle’s popularity as a psychophysical variable, the attention paid to surface tilt seems undeservedly scant. Experiments that demonstrate a technique for measuring apparent surface tilt are reported. The experimental stimuli were oblique crosses and parallelograms, which suggest oriented planes in 3-D. The apparent tilt of the plane might be probed by orienting a needle in 3-D so as to appear normal, projecting the normal onto the image plane, and measuring its direction (e.g., relative to the horizontal). It is shown to be preferable, however, to merely rotate a line segment in 2-D, superimposed on the display, until it appears normal to the perceived surface. The apparent surface tilt recorded in these experiments corresponded closely to that predicted by assuming the 3-D configurations consist of equal-length lines and perpendicular intersections. 相似文献