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191.
In addition to evaluating a structural equation model (SEM) as a whole, often the model parameters are of interest and confidence intervals for those parameters are formed. Given a model with a good overall fit, it is entirely possible for the targeted effects of interest to have very wide confidence intervals, thus giving little information about the magnitude of the population targeted effects. With the goal of obtaining sufficiently narrow confidence intervals for the model parameters of interest, sample size planning methods for SEM are developed from the accuracy in parameter estimation approach. One method plans for the sample size so that the expected confidence interval width is sufficiently narrow. An extended procedure ensures that the obtained confidence interval will be no wider than desired, with some specified degree of assurance. A Monte Carlo simulation study was conducted that verified the effectiveness of the procedures in realistic situations. The methods developed have been implemented in the MBESS package in R so that they can be easily applied by researchers. 相似文献
192.
Jackie Lai Ming Tam 《Journal of Consumer Behaviour》2011,10(4):205-215
Customer satisfaction continues to draw the interest of researchers and practitioners because it can lead to long term benefits including customer loyalty. Purchase importance plays a role in pre‐purchase process, yet little is known about how it may influence customer satisfaction formation process and loyalty intentions. This study examines the moderating effect of purchase importance in the customer satisfaction formation process and in loyalty intentions. A survey was conducted with customers in a restaurant setting, and structural equation analysis via LISREL was performed. The results show that perceived performance has a stronger influence on satisfaction when purchase importance is low, whereas satisfaction seems to be influenced both by disconfirmation and perceived performance when purchase importance is high. Post‐consumption expectations were found to influence on loyalty intentions under both high and low importance purchase conditions. The implications of these findings are discussed and suggestions for future research are made. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
193.
Two experiments investigated the effects of landmarks and body-based information on route knowledge. Participants made four
out-and-back journeys along a route, guided only on the first outward trip and with feedback every time an error was made.
Experiment 1 used 3-D virtual environments (VEs) with a desktop monitor display, and participants were provided with no supplementary
landmarks, only global landmarks, only local landmarks, or both global and local landmarks. Local landmarks significantly
reduced the number of errors that participants made, but global landmarks did not. Experiment 2 used a head-mounted display; here, participants who physically walked through the VE (translational and rotational body-based
information) made 36% fewer errors than did participants who traveled by physically turning but changing position using a
joystick. Overall, the experiments showed that participants were less sure of where to turn than which way, and journey direction
interacted with sensory information to affect the number and types of errors participants made. 相似文献
194.
有尊严的幸福生活何以可能? 总被引:1,自引:0,他引:1
为人的尊严和幸福进行论证和申辩,这是哲学不可推卸的使命。近年来在我国,人的尊严和幸福越来越成为社会各界热烈讨论的话题,有尊严的幸福生活第一次被写进了政府工作报 相似文献
195.
196.
Neha A. John‐Henderson Betty Henderson‐Matthews Scott R. Ollinger Jerry Racine Megan R. Gordon Aidan A. Higgins Wil C. Horn Sequoia A. Reevis Jolynn A. Running Wolf Davida Grant Agnieszka Rynda‐Apple 《American journal of community psychology》2019,64(1-2):118-125
American Indian (AI) communities have high levels of stress and trauma and are disproportionately affected by numerous preventable diseases. Here, we describe an academic–community partnership based on a collaboration between Blackfeet Community College students and faculty in Psychology and Immunology at Montana State University (MSU). The collaboration, which has spanned over 5 years, was sparked by community interest in the relationship between stress and disease on the Blackfeet reservation. Specifically, community members wanted to understand how the experience of psychological stress and trauma may affect disease risk in their community and identify factors that promote resilience. In doing so, they hoped to identify pathways through which health could be improved for individual community members. Here, we discuss all stages of the collaborative process, including development of measures and methods and themes of research projects, challenges for community members and non‐indigenous collaborators, future directions for research, and the lessons learned. Finally, we note the ways in which this partnership and experience has advanced the science of community engagement in tribal communities, with the hope that our experiences will positively affect future collaborations between indigenous community members and non‐indigenous scientists. 相似文献
197.
198.
Previous research on the Dissociative Experiences Scale (DES) has demonstrated that (a) dissociation is quantifiable in both clinical and nonclinical samples and (b) a three-factor structure (amnesia, depersonalization, and absorption) is tenable for clinical samples. The factor structurefor nonclinical samples is less clear, with one- and multiple-factor solutions proposed. To clarify the DESfactor structure in nonclinical samples, confirmatory factor analyses were conducted on (a) one-, two-, three-, and four-factorfirst-order models and (b) two bifactor (hierarchical) models of DES scoresfor two samples of nonclinical university students. Results of delta(chi2) and goodness-of-fit indices support the three-factor (first-order) model as bestfitting of the datafor these samples. The utility of this DES model for screening both dissociative pathology and elevated normal dissociative behavior in clinical and nonclinical populations is discussed. 相似文献
199.
In the present study, the authors evaluated the self-concept levels of Hong Kong Chinese adults with visible and not visible physical disabilities. Fifty-five Hong Kong Chinese (22 men and 33 women) aged 18 to 55 (M = 39.50, SD = 10.21) participated-20 without physical disabilities (control group), 20 with visible physical disabilities, and 15 with physical disabilities that were not visible. All the participants responded to the Self-Concept Questionnaire for Hong Kong Chinese With Physical Disabilities (SCQPD; S. F. Tam & D. Watkins, 1997). The group with visible disabilities scored significantly lower in self-concept than did the control group and the group with disabilities that were not visible. There were also significant differences between specific facets of self-concept for people with visible and not visible disabilities. It was interesting to find that there was no significant difference in self-concept levels between the not visible group and the control group. The implications for rehabilitation and social services for these various groups are discussed. 相似文献
200.
The authors conducted the present experiments to resolve the discrepancy between studies in which relative-timing learning has been found to be enhanced by consistent practice conditions and contextual interference experiments in which relative-timing learning has been found to be enhanced more by random practice than by blocked practice. There were 40 participants in Experiment 1 and 48 in Experiment 2. The results of Experiment 1 extended previous findings: The learning of the relative-timing pattern was systematically enhanced by the degree to which the practice conditions promoted movement consistency (constant > blocked > serial > random). Experiment 2 provided evidence that the discrepancy between the relative-timing effects in the 2 groups of studies was a product of the way in which relative-timing goals and feedback were presented. When the feedback was presented as segment times, random practice resulted in generally more stable relative-timing patterns during acquisition than blocked practice did. Thus, in both experiments, the learning of the relative-timing pattern was enhanced by more stable relative-timing conditions during acquisition. Absolute-timing learning, as indexed by the transfer tests, was enhanced by serial or random practice as compared with constant or blocked practice, and was relatively unaffected by feedback conditions directed at the relative-timing pattern. In terms of motor programming theory, those findings are taken as additional evidence for the disassociation of memories supporting generalized motor program (GMP) performance, as indexed by relative timing, and parameter performance, as indexed by absolute timing. 相似文献