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排序方式: 共有288条查询结果,搜索用时 15 毫秒
201.
This investigation assessed the relationship of race and delinquent status with the noncontent verbal behavior of adolescent males. A standardized videotape interview was used to ensure consistent stimulus presentation. Sixteen white and sixteen black delinquents were compared with equal numbers of nondelinquents on the noncontent verbal measures of total time (performance time), units (frequency), and latency. It was predicted that nondelinquents would be more verbal than delinquents and whites would be more verbal than blacks. No racial differences were found. Delinquents, however, were found to talk significantly less than nondelinquents and to have significantly longer verbal latencies. Discussion of these results centered on the verbal demand characteristics of certain settings, such as classrooms and court hearings. 相似文献
202.
Rosemary Pierrel J. Gilmour Sherman Scot Blue Frederick W. Hegge 《Journal of the experimental analysis of behavior》1970,13(1):17-35
The acquisition of auditory intensity discriminations in rats trained on multiple variable-interval extinction schedules was studied as a function of some of the variables that contribute to the speed of development of differential responding and the final level attained. The effects of three variables were isolated and studied in detail: (1) the decibel difference between the discriminative stimuli (intensity difference); (2) the intensity relationship between the stimuli (relative intensity); and (3) the position of the stimuli on the intensity continuum (absolute intensity). Each of the three variables generated orderly relationships and interacted with one another to produce complex effects upon differential responding. 相似文献
203.
204.
David E. McIntosh Rosemary Mulkins Laqueta Pardue-Vaughn Laura L. B. Barnes Betty E. Gridley 《Journal of School Psychology》1992,30(4):355-361
The canonical relationship of the Verbal and Nonverbal clusters of the Differential Ability Scales Upper Preschool Level was studied. The two clusters share 45% of their variance. Independent interpretation of the Verbal and Nonverbal scales was supported. 相似文献
205.
As family therapy ceases to be regarded as a passing fashion, and becomes recognized as a real therapeutic force, the need for new forms of support and supervision is becoming ever more apparent. This paper describes and evaluates the supervisory system for family therapy set up by an Area Group in a Local Authority Social Services Department and plans to do so in a way which has practical application for workers in a variety of settings. 相似文献
206.
Rosemary Tannock Russell Schachar Gordon Logan 《Journal of abnormal child psychology》1995,23(2):235-266
A randomized, double-blind, placebo-controlled trial was conducted to assess the acute effects of placebo and three doses of methylphenidate (MPH) (0.3, 0.6, 0.9 mg/kg) on cognitive flexibility and overt behavior in 28 children with a confirmed diagnosis of attention deficit-hyperactivity disorder. Two underlying cognitive processes (response inhibition and response reengagement) were assessed by measuring the probability and speed with which subjects could inhibit responses to a primary task (forced-choice letter discrimination) and immediately execute a response to a secondary task (simple reaction time) when given a signal to do so. Results indicated that MPH enhanced cognitive flexibility, although the high dose was less effective than lower doses in enhancing response inhibition. Dissociations of dose effects on cognitive function and behavior were demonstrated: Dose-response functions for changes in behavior were linear, whereas the function for response inhibition was U-shaped. Findings argue against the typical clinical practice of determining the response to stimulant treatment from a single measure such as parent report of child behavior. 相似文献
207.
In an experiment designed to extend Howarth and Treisman's recent observations on the lowering of the visual and auditory threshold produced by a warning stimulus, it has been found that the threshold to electrical stimulation of one forearm is raised by a similar stimulus on the other forearm. As in the earlier experiments the “warning” was effective if it came 100 millisec. before or after the threshold stimulus. The effect increased with increasing warning strength over the range of five near-threshold strengths used.
These results appear to be inconsistent with the explanation previously proposed to account for the retroactive lowering of threshold. This suggested that the warning was acting simply as a marker, reducing the subject's uncertainty as to when the stimulus was coming. The fact that the rise in threshold was also induced retroactively shows that some interaction must be occurring in the central processes concerned in perception, and that it cannot be explained in terms of attenuation of the afferent volley. 相似文献
These results appear to be inconsistent with the explanation previously proposed to account for the retroactive lowering of threshold. This suggested that the warning was acting simply as a marker, reducing the subject's uncertainty as to when the stimulus was coming. The fact that the rise in threshold was also induced retroactively shows that some interaction must be occurring in the central processes concerned in perception, and that it cannot be explained in terms of attenuation of the afferent volley. 相似文献
208.
Attention, Perception, & Psychophysics - The purpose of the study was consideration of the stability of binocular rivalry rates during extended periods of spaced and massed viewing by untrained... 相似文献
209.
Marton I Wiener J Rogers M Moore C Tannock R 《Journal of abnormal child psychology》2009,37(1):107-118
This study explored empathy and social perspective taking in 8 to 12 year old children with and without Attention-Deficit/Hyperactivity
Disorder (ADHD). The sample comprised 92 children, 50 with a diagnosis of ADHD and 42 typically developing comparison children.
Although children with ADHD were rated by their parents as less empathic than children without ADHD, this difference was accounted
for by co-occurring oppositional and conduct problems among children in the ADHD sample. Children with ADHD used lower levels
of social perspective taking coordination in their definition of problems, identification of feelings, and evaluation of outcomes
than children without ADHD, and these differences persisted after the role of language abilities, intelligence and oppositional
and conduct problems were taken into account. Girls were more empathic and had higher overall social perspective taking scores
than boys. Implications for research and practice are discussed.
This research was funded by the Social Sciences and Humanities Research Council (SSHRC). 相似文献
210.