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151.
Students learned toy assembly sequences presented in picture, text, or one of three multimedia formats, and completed order verification, recall, and object assembly tasks. Experiment 1 compared repetitious (i.e. dual format presentations each conveying similar information) with complementary (i.e. dual format presentations each conveying different information) multimedia presentations. Repetitious presentations appear to provide learning benefits as a function of their inherent redundancy; complementary presentations provide benefits as a result of users actively integrating picture and text elements into a cohesive mental model. Experiment 2 compared repetitious with interleaved (i.e. assembly steps presented in alternating picture‐text formats) multimedia presentations. Again, multimedia presentations led to overall learning advantages relative to single‐format presentations, with an emphasis on both repetition and integrative working memory processes. Object assembly performance consistently demonstrated the utility of picture learning, with or without accompanying text. Results are considered relative to classic and contemporary learning theory, and inform educational design. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
152.
Walters GD Rogers R Berry DT Miller HA Duncan SA McCusker PJ Payne JW Granacher RP 《心理评价》2008,20(3):238-247
The 6 nonoverlapping primary scales of the Structured Interview of Reported Symptoms (SIRS) were subjected to taxometric analysis in a group of 1,211 criminal and civil examinees in order to investigate the latent structure of feigned psychopathology. Both taxometric procedures used in this study, mean above minus below a cut (MAMBAC) and maximum covariance (MAXCOV), produced dimensional results. A subgroup of participants (n = 711) with valid Minnesota Multiphasic Personality Inventory-2 (MMPI-2) protocols were included in a second round of analyses in which the 6 nonoverlapping primary scales of the SIRS and the Infrequency (F), Infrequency-Psychopathology (Fp), and Dissimulation (Ds) scales of the MMPI-2 served as indicators. Again, the results were more consistent with dimensional latent structure than with taxonic latent structure. On the basis of these findings, it is concluded that feigned psychopathology forms a dimension (levels of fabrication or exaggeration) rather than a taxon (malingering-honest dichotomy) and that malingering is a quantitative distinction rather than a qualitative one. The theoretical and clinical practice implications of these findings are discussed. 相似文献
153.
Erica L. Hauck Lori Anderson Snyder Luz-Eugenia Cox-Fuenzalida 《Current psychology (New Brunswick, N.J.)》2008,27(2):112-125
The current study investigated the effect of workload variability on performance and stress, as well as the role of social
support as a potential intervention. Based on previous research it was predicted that a shift in workload from either high
to low or low to high would lower performance and increase stress, while the provision of social support would result in higher
performance and lower stress. Results revealed significant decrements in performance following workload shifts, though no
increase in stress was perceived. Performance in both workload conditions significantly, but inconsistently, increased following
the provision of social support and stress significantly decreased following the shift from high to low workload. Implications
and future research steps are discussed further. 相似文献
154.
155.
Peay HL Veach PM Palmer CG Rosen-Sheidley B Gettig E Austin JC 《Journal of genetic counseling》2008,17(1):6-17
This is the first article of a two-part professional development series addressing genetic counseling for personal and family
histories of psychiatric disorders. It is based on an Educational Breakout Session presented by the Psychiatric Special Interest
Group of the National Society of Genetic Counselors at the 2006 Annual Education Conference. This article examines issues
that arise in addressing family histories of psychiatric illness, while the second article in the series considers the generation
and provision of individualized recurrence risks for psychiatric disorders. In this article we discuss the importance of managing
uncertainty for affected individuals and their close family members who have been referred to genetics for a number of different
indications. We then use four simulated cases to make recommendations about the scope and timing of discussions related to
the psychiatric family history. 相似文献
156.
Some of the most important information we encounter changes so rapidly that our perceptual systems cannot process all of it in detail. Spatially selective attention is critical for perception when more information than can be processed in detail is presented simultaneously at distinct locations. When presented with complex, rapidly changing information, listeners may need to selectively attend to specific times rather than to locations. We present evidence that listeners can direct selective attention to time points that differ by as little as 500 msec, and that doing so improves target detection, affects baseline neural activity preceding stimulus presentation, and modulates auditory evoked potentials at a perceptually early stage. These data demonstrate that attentional modulation of early perceptual processing is temporally precise and that listeners can flexibly allocate temporally selective attention over short intervals, making it a viable mechanism for preferentially processing the most relevant segments in rapidly changing streams. 相似文献
157.
Testing a self-determination theory intervention for motivating tobacco cessation: supporting autonomy and competence in a clinical trial. 总被引:1,自引:0,他引:1
Geoffrey C Williams Holly A McGregor Daryl Sharp Chantal Levesque Ruth W Kouides Richard M Ryan Edward L Deci 《Health psychology》2006,25(1):91-101
A longitudinal randomized trial tested the self-determination theory (SDT) intervention and process model of health behavior change for tobacco cessation (N = 1006). Adult smokers were recruited for a study of smokers' health and were assigned to intensive treatment or community care. Participants were relatively poor and undereducated. Intervention patients perceived greater autonomy support and reported greater autonomous and competence motivations than did control patients. They also reported greater medication use and significantly greater abstinence. Structural equation modeling analyses confirmed the SDT process model in which perceived autonomy support led to increases in autonomous and competence motivations, which in turn led to greater cessation. The causal role of autonomy support in the internalization of autonomous motivation, perceived competence, and smoking cessation was supported. 相似文献
158.
This study was designed to determine how ethnicity, the amount of perceived accent or dialect, and comprehensibility affect a speaker's employability. Sixty human resource specialists judged 3 female potential applicants. The applicants represented speakers of Spanish‐influenced English, Asian‐influenced English, and African American Vernacular English. When the speaker's perceived accent or dialect was minimal, perceived ethnicity did not affect employability. However, all speakers with maximally perceived accents or dialects were given a lower employability rating. Thus, speakers with a maximally perceived accent or dialect should consider accent or dialectal modification if their comprehensibility or prospective employability is compromised. 相似文献
159.
Lori Wilkinson Tracey Peter Renuka Chaturvedi 《Journal of International Migration and Integration》2006,7(2):195-217
This paper identifies and compares the factors that influence the short-term, medium-term, and long-term employment income of immigrant women in Canada and the United States. It is widely documented that immigrant women in both countries face barriers to employment, high status occupational attainment, and reasonable economic returns to their education, but studies typically fail to consider the various stages of integration. By examining the short-term (less than three years), medium-term (3 to 10 years), and long-term (more than ten years) stages of economic integration, we can identify factors that influence their employment income at varying stages of settlement. Results from the analysis of the Censuses of the United States and Canada reveal that the short-term stages of integration markedly affect the employment income of immigrant women in the medium- and long-term in both countries. 相似文献
160.
The authors argue that unlike their younger counterparts, who experience their young adult development within a dual‐identity or bicultural framework, older, African American, gay men experience their development through 3 distinct cultural perspectives. Using a constructivist framework, the authors explore this tricultural development and make recommendations regarding counseling services for this population. 相似文献