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31.
The human Müller-Lyer illusion in goalkeeping 总被引:1,自引:0,他引:1
We examined whether a goalkeeper can influence a penalty-taker's actions by assuming postures that mimic Müller-Lyer configurations. The results of two studies indicate that (i) goalkeeper posture affects the perception of the goalkeeper's height in a manner consistent with the Müller-Lyer illusion; (ii) this influences penalty-taking accuracy; and (iii) a posture which resembles a wing-out Müller-Lyer configuration results in wider and lower throws. 相似文献
32.
Nelson G Janzen R Trainor J Ochocka J 《American journal of community psychology》2008,42(1-2):192-201
The purpose of the paper is to reflect on value dilemmas in mental health consumer-run organizations and to discuss implications for research, policy, and practice. We review the roots of consumer-run organizations in the self-help movement and the psychiatric survivor liberation movement, focusing on the distinctive values espoused by consumer-run organizations. We also discuss evidence-based and value-based approaches to mental health policy formulation and mental health reform, noting the particular importance of value-based approaches and the role that consumer-run organizations can play in mental health reform. Based on our experiences conducting a participatory action research study of four mental health consumer-run organizations, we identify and examine several value dilemmas, discuss the lessons that we learned about these value dilemmas, and note their implications for future directions in research, policy, and practice. 相似文献
33.
34.
Using cluster analysis to combine specific adaptive measures related to mastery motivation (intrinsic motivation, self-adequacy, and locus of control), a total of 654 high school students were placed into distinct adaptive motivation groups. Mean scores on a variety of self-reported and peer-reported measures of interpersonal, intrapersonal, and academic functioning were compared across the groups. Results found that youth in the “high adaptive” motivation group reported significantly higher global and family satisfaction, self-esteem, interpersonal relations, grade-point average and school belonging, and significantly lower depression, anxiety and social stress than youth in the other two motivation groups. Peer-reported prosocial and academic behaviors were significantly related to higher levels of adaptive motivation. Collectively, these findings suggest a number of psychological, social, and academic benefits that are associated with incremental levels of adaptive motivation. The implications of these findings for research and practice conclude the paper. 相似文献
35.
The present study estimated the unique contribution of self-efficacy to work-related performance controlling for personality (the Big 5 traits), intelligence or general mental ability, and job or task experience. Results, based on a meta-analysis of the relevant literatures, revealed that overall, across all studies and moderator conditions, the contribution of self-efficacy relative to purportedly more distal variables is relatively small. Within moderator categories, there were several cases in which self-efficacy made unique contributions to work-related performance. For example, self-efficacy predicted performance in jobs or tasks of low complexity but not those of medium or high complexity, and self-efficacy predicted performance for task but not job performance. Overall, results suggest that the predictive validity of self-efficacy is attenuated in the presence of individual differences, though this attenuation does depend on the context. 相似文献
36.
Participants struck 500 golf balls to a concealed target. Outcome feedback was presented at the subjective or objective threshold of awareness of each participant or at a supraliminal threshold. Participants who received fully perceptible (supraliminal) feedback learned to strike the ball onto the target, as did participants who received feedback that was only marginally perceptible (subjective threshold). Participants who received feedback that was not perceptible (objective threshold) showed no learning. Upon transfer to a condition in which the target was unconcealed, performance increased in both the subjective and the objective threshold condition, but decreased in the supraliminal condition. In all three conditions, participants reported minimal declarative knowledge of their movements, suggesting that deliberate hypothesis testing about how best to move in order to perform the motor task successfully was disrupted by the impoverished disposition of the visual outcome feedback. It was concluded that sub-optimally perceptible visual feedback evokes implicit processes. 相似文献
37.
Janzen R Nelson G Hausfather N Ochocka J 《American journal of community psychology》2007,39(3-4):287-299
Since the 1970s mental health consumer-run organizations have come to offer not only mutual support, but they have also adopted
agendas for broader social change. Despite an awareness of the need for system level efforts that create supportive environments
for their members, there has been limited research demonstrating how their system level activities can be documented or their
impacts evaluated. The purpose of this paper is to feature a method of evaluating systems change activities and impacts. The
paper is based on a longitudinal study evaluating four mental health consumer-run organizations in Ontario, Canada. The study
tracked system level activities and impacts using both qualitative and quantitative methodologies. The article begins by describing
the development and implementation of these methods. Next it offers a critical analysis of the methods used. It concludes
by reflecting on three lessons learned about capturing system level activities and impacts of mental health consumer-run organizations. 相似文献
38.
In recent years, scholars have attempted to understand the role of information in policymaking by developing several models
of information utilization and have tested them empirically, at both national and state levels. This paper has called into
question past studies as they relate to describing and explaining use of information. This paper tests an integrated model
of information utilization that contains four sets of primary variables: decision makers’ environments (i.e., nature of policy
issues), organization, individual characteristics, and characteristics of information. Based on the conceptual framework,
a path model is built and tested against data about knowledge utilization and policy change in two areas of mental health
policy (i.e., service and financing). The findings of the study have demonstrated that decision makers’ behavior does not
conform to the assumptions put forward by either the organizational interest (e.g., information source or content of information)
or the communications perspective (e.g., decision makers’ attitudes toward social science research). Instead, we have shown
that information utilization is affected directly and indirectly by a variety of factors and their linkage, and not dominated
by one set of factors that is defined by a singe perspective. The most important paths in the model are those between factors
associated with information (e.g., the amount of information received or information source) and the use of information. Interestingly,
these factors also play the role of major intervening mechanisms for linking other factors to decision makers’ use of information.
More importantly, the general pattern of the findings indicates that policy areas make a difference in the process of information
utilization. 相似文献
39.
Robert F. Rich 《Knowledge, Technology, and Policy》1997,10(3):11-24
Studies of knowledge utilization in public policy-making have important practical and theoretical implications. Accordingly,
a voluminous work has been done on understanding and explaining the process of knowledge utilization (see Rich and Oh, 1993).
However, we can easily find that there is the conspicuous absence of a greatly expanded understanding of the use of knowledge
from those studies (Mandell and Sauter, 1984). Taken as a whole, empirical studies in the area of knowledge utilization have
suffered from several critical problems (see Rich, 1991; Oh, 1996a). More importantly, there appears to be serious conceptual
and methodological gaps which need to be filled. This article focuses on one of the most significant methodological problems:
measuring “knowledge utilization” from an evaluation perspective and offers some suggestions for future studies. 相似文献
40.
Geschwind and Galaburda (1987) proposed that immune disorder (ID) susceptibility, along with left handedness and familial sinistrality (FS), is a "marker" for anomalous dominance. The theory predicts lesser left lateralization for language processes, lessened left hemisphere abilities, and enhanced right hemisphere abilities. We assessed language laterality (dichotic consonant vowel task) and performances on spatial and verbal tasks. Subjects were 128 college students. The factors of handedness, sex, FS, and immune disorder history (negative or positive) were perfectly counterbalanced. Left-handers were significantly less lateralized for language and scored lower than right-handers on the spatial tasks. Females scored lower on mental rotation than males, but performed comparably to males on the spatial relations task. The only effect of ID was by way of interaction with FS on both spatial tasks--subjects who were either negative or positive on both FS and ID status factors scored significantly higher than subjects negative for one but positive for the other factor. A speculative explanatory model for this interaction was proposed. The model incorporates the notion that FS and ID factors are comparably correlated, but in opposite directions, with hormonal factors implicated by other research as relevant for spatial ability differences. Finally, no support for the "anomalous dominance" hypothesis predictions was found. 相似文献