首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   71篇
  免费   5篇
  2022年   1篇
  2021年   3篇
  2020年   1篇
  2019年   1篇
  2018年   3篇
  2017年   2篇
  2016年   4篇
  2015年   1篇
  2014年   2篇
  2013年   12篇
  2012年   7篇
  2011年   3篇
  2010年   3篇
  2009年   1篇
  2008年   4篇
  2006年   2篇
  2005年   2篇
  2004年   4篇
  2003年   5篇
  2002年   3篇
  2001年   2篇
  2000年   1篇
  1999年   4篇
  1988年   1篇
  1984年   1篇
  1979年   1篇
  1974年   1篇
  1969年   1篇
排序方式: 共有76条查询结果,搜索用时 15 毫秒
41.
Super (1990) proposed that the psychological determinants of career development attitudes are time perspective, self-esteem, and causal attributions. The present study analyzed the effects of these determinants on the career development attitudes of 320 students from grade 9 and 300 students from grade 12. The analysis of the data using structural equations modeling (LISREL) showed both similarities and differences in the effects of the determinants of career attitudes between the two grade levels. The results are discussed in the context of the career maturity model.  相似文献   
42.
Personal and work-related stressors experienced by employees can result in substantial costs to employers in the form of employee absenteeism. Employee Assistance Programs (EAPs) provide an important vehicle to assist employees with behavioral health issues, personal concerns, and work-related problems that impact employee absenteeism. This study tested the impact of EAPs on reducing employee absenteeism utilizing a well-matched control group and human resource timecard data. The study recruited employees from 20 areas of state government and used a prospective, quasi-experimental design with propensity score matching. EAP (n = 145) users were matched to non-EAP (n = 145) users on baseline demographic, psychosocial, and work-related characteristics that differentiate the groups. Hours of sick time recorded were provided by human resource offices. Differences in sick leave usage were tested using mixed model repeated measures. A steeper decline in sick leave usage for EAP than non-EAP employees was found, with estimates of 4.8 to 6.5% fewer hours lost per month to illness. Further analysis found that EAP services were most effective in helping clients move from moderate to low levels of sick leave rather than in reducing sick leave for those experiencing chronic absenteeism. Research on the effectiveness of EAPs rarely utilizes well-matched control groups and frequently relies on self-reported outcomes. Using an objective measure of work time lost, this study provides empirical evidence that users of EAP services tend to reduce their absenteeism at a faster pace than non-EAP users experiencing similar challenges to maintaining productivity.  相似文献   
43.
Evolutionary theorists have argued that perceived competitive disadvantage may lead to more positive evaluation of, and greater likelihood of engaging in, risky and antisocial behavior. However, experimental studies have not yet examined the effects of competitive disadvantage on perceptions of rape. In the current study, we created a manipulation of perceived competitive status to test its effects on beliefs about rape. In one condition, participants were made to feel disadvantaged relative to male peers in terms of financial, physical, and intellectual power, whereas in the other condition they were made to feel advantaged. Participants were 120 heterosexual male undergraduate students. The manipulation was effective; compared to participants in the advantage condition, those in the disadvantage condition rated themselves as significantly worse off financially, shorter, in worse physical shape, and as having lower course marks than the average male student at the university. Compared to perceived competitive advantage, perceived disadvantage led to less negative attitudes towards rape. However, perceived competitive status did not significantly affect justifications and excuses for rape. Future studies using similar experimental manipulations can complement correlational studies and may contribute to greater clarity, precision, and sophistication of research and theory on the role of competitive disadvantage in rape.  相似文献   
44.
In the present studies, we evaluated the contributions of language and sensorimotor information to the representation of abstract and concrete words and the possibility that the organizations of the two types of concepts follow different organizational principles: association, for abstract concepts, and semantic similarity, for concrete concepts. In Study 1, we examined the two strongest associates of concrete and abstract words from published free association norms. Study 2 then extended this analysis to individual data collected with a free association task. Language associations were more important for abstract than for concrete words, but for sensorimotor information no differences were observed between the two types of concepts. Also, no clear evidence was found for different qualitative organizational principles for abstract and concrete concepts. Multiple representational systems thus seem to be engaged in the conceptual processing of abstract and concrete concepts, while it remains to be investigated whether their representations follow different organizational principles.  相似文献   
45.
Background. Two distinct abilities, mathematical reasoning and arithmetic skill, might make separate and specific contributions to mathematical achievement. However, there is little evidence to inform theory and educational practice on this matter. Aims. The aims of this study were (1) to assess whether mathematical reasoning and arithmetic make independent contributions to the longitudinal prediction of mathematical achievement over 5 years and (2) to test the specificity of this prediction. Sample. Data from Avon Longitudinal Study of Parents and Children (ALSPAC) were available on 2,579 participants for analyses of KS2 achievement and on 1,680 for the analyses of KS3 achievement. Method. Hierarchical regression analyses were used to assess the independence and specificity of the contribution of mathematical reasoning and arithmetic skill to the prediction of achievement in KS2 and KS3 mathematics, science, and English. Age, intelligence, and working memory (WM) were controls in these analyses. Results. Mathematical reasoning and arithmetic did make independent contributions to the prediction of mathematical achievement; mathematical reasoning was by far the stronger predictor of the two. These predictions were specific in so far as these measures were more strongly related to mathematics than to science or English. Intelligence and WM were non‐specific predictors; intelligence contributed more to the prediction of science than of maths, and WM predicted maths and English equally well. Conclusions. There is clear justification for making a distinction between mathematical reasoning and arithmetic skills. The implication is that schools must plan explicitly to improve mathematical reasoning as well as arithmetic skills.  相似文献   
46.
For many years, it has been suggested that drugs that interfere with dopamine (DA) transmission alter the "rewarding" impact of primary reinforcers such as food. Research and theory related to the functions of mesolimbic DA are undergoing a substantial conceptual restructuring, with the traditional emphasis on hedonia and primary reward yielding to other concepts and lines of inquiry. The present review is focused upon the involvement of nucleus accumbens DA in effort-related choice behavior. Viewed from the framework of behavioral economics, the effects of accumbens DA depletions and antagonism on food-reinforced behavior are highly dependent upon the work requirements of the instrumental task, and DA-depleted rats show a heightened sensitivity to response costs, especially ratio requirements. Moreover, interference with accumbens DA transmission exerts a powerful influence over effort-related choice behavior. Rats with accumbens DA depletions or antagonism reallocate their instrumental behavior away from food-reinforced tasks that have high response requirements, and show increased selection of low reinforcement/low cost options. Nucleus accumbens DA and adenosine interact in the regulation of effort-related functions, and other brain structures (anterior cingulate cortex, amygdala, ventral pallidum) also are involved. Studies of the brain systems regulating effort-based processes may have implications for understanding drug abuse, as well as symptoms such as psychomotor slowing, fatigue or anergia in depression and other neurological disorders.  相似文献   
47.
The objective of this study was to evaluate the outcome of child psychoanalytic psychotherapy in a clinical outpatient setting in a city in southern Brazil. Three psychological tests (Rorschach, Bender and WISC III) were administered to 23 children, aged 6–11 years old, and the Child Behaviour Check List (CBCL) was completed by the parents. All testing was completed before the beginning of the individual psychoanalytic psychotherapy. The same measures were repeated after 12 months of intervention. The 23 children who received individual psychoanalytic psychotherapy were compared with a control group who did not receive any kind of intervention. In the clinical group, the results indicated a statistically significant reduction of anxiety symptoms (0.002) and school problems (0.031), improvement in interpersonal relationships (0.022), and positive change in the following CBCL scales: withdrawn (0.010), thought problems (0.022), anxiety and depression (0.017), internalising (0.008) and total (0.003). An effect size of 0.696 was calculated based on the CBCL total scale before and after the intervention. The results revealed that child psychoanalytical psychotherapy is mostly effective in the treatment of female children who present internalising disorders.  相似文献   
48.
Retrieval practice has been shown to protect against the negative effects of previously learned information on the learning of subsequent information, while increasing retention of new information. We report three experiments investigating the impact of retrieval practice on false recall in a multiple list paradigm. In three different experimental designs participants studied blocks of interrelated words that converged on non-presented associates. Participants were tested either after every study block or only after the fifth study block, and both groups received a cumulative test on all five study blocks. Overall the results from all three different experimental designs point to a benefit of testing in increasing long-term veridical recall on the cumulative test. More importantly, this improvement in veridical recall did not come at a cost: False recall on the cumulative test did not increase from retrieval practice.  相似文献   
49.
Memory consists of several phases or processes that can be influenced by many factors, including the individual's circadian rhythm and the time of day at which tests are performed. The present objective was to evaluate the performance on memory tests of different chronotypes during the morning and the evening shifts. Subjects (21 men and 26 women, between the ages of 20 and 35 yr.) were evaluated for memory and metamemory differences in the morning and in the afternoon, using a battery of neuropsychological tests composed of the Word List with Emotional Content, Visual Memory, Scale-Semantic Memory, Digit Span, Word-Pairs Associated, Verbal Fluency Test, and Metamemory questionnaire. In the evening shift, there was a statistical difference among chronotypes on the Word List with Neutral Content and on the Verbal Fluency Test. In the morning, there were no statistically significant differences; however, the morning-type subjects had higher scores on the metamemory tests (p<.01), while the evening-type subjects had higher scores in the afternoon (p<.01). In spite of their perception, on Word-Pairs Associated and Word List with Emotional Content, the subjects, independently of their chronotype, showed better performance by the evening than by the morning shift. These results highlight the importance of controlling the shift of day and chronotype in studies with the objective of exploration of human performance.  相似文献   
50.
Although many human behaviors are held to have adaptive significance, specific examples of behaviors that represent direct holdovers from the ancient world have been few, particularly in the cognitive realm. In the present research, the authors tested the hypothesis that such cognitive examples might in fact exist and be experimentally verifiable. They suggested that human predispositions to learn basic aspects of hunting with relative ease might be "left over" from human evolution in the pre-agricultural past. This hypothesis was tested in 3 experiments with reference to the learning and recall of animal tracks, an activity of probable high adaptive significance within the area of visual memory. Undergraduate students selected at random learned and recalled animal tracks with significantly greater ease than they recalled other animate and inanimate items. A single exception lay in relatively unfamiliar kitchen implements, which were recalled with greater facility than were animal tracks, consistent with current theoretical considerations. Results indicate that direct behavioral holdovers from the ancient world may exist in the cognitive realm and that these may be accessed experimentally and predictably under appropriate conditions.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号