全文获取类型
收费全文 | 3779篇 |
免费 | 226篇 |
出版年
2023年 | 27篇 |
2022年 | 34篇 |
2021年 | 51篇 |
2020年 | 96篇 |
2019年 | 89篇 |
2018年 | 126篇 |
2017年 | 121篇 |
2016年 | 156篇 |
2015年 | 109篇 |
2014年 | 117篇 |
2013年 | 426篇 |
2012年 | 217篇 |
2011年 | 173篇 |
2010年 | 130篇 |
2009年 | 121篇 |
2008年 | 161篇 |
2007年 | 134篇 |
2006年 | 110篇 |
2005年 | 97篇 |
2004年 | 111篇 |
2003年 | 96篇 |
2002年 | 91篇 |
2001年 | 65篇 |
2000年 | 82篇 |
1999年 | 46篇 |
1998年 | 51篇 |
1997年 | 34篇 |
1996年 | 27篇 |
1994年 | 24篇 |
1993年 | 30篇 |
1992年 | 36篇 |
1991年 | 52篇 |
1990年 | 29篇 |
1989年 | 34篇 |
1988年 | 26篇 |
1987年 | 27篇 |
1986年 | 22篇 |
1985年 | 30篇 |
1984年 | 21篇 |
1982年 | 28篇 |
1981年 | 34篇 |
1980年 | 34篇 |
1979年 | 29篇 |
1978年 | 28篇 |
1976年 | 23篇 |
1975年 | 35篇 |
1974年 | 37篇 |
1973年 | 29篇 |
1972年 | 23篇 |
1971年 | 22篇 |
排序方式: 共有4005条查询结果,搜索用时 46 毫秒
951.
This research focuses on the impact of leadership empowerment behavior (LEB) on customer service satisfaction and sales performance, as mediated by salespeople's self-efficacy and adaptability. Moreover, the authors propose an interactive relationship whereby LEB will be differentially effective as a function of employees' empowerment readiness. The authors' hypotheses are tested using survey data from a sample of 231 salespeople in the pharmaceutical field, along with external ratings of satisfaction from 864 customers and archival sales performance information. Results indicated that contrary to popular belief, employees with low levels of product/industry knowledge and low experience benefit the most from leadership behaviors that are empowering, whereas high-knowledge and experienced employees reap no clear benefit. The authors conclude with directions for future research and application. 相似文献
952.
This study uses prospective data from a survey of 1,177 adolescent girls to examine whether emotional eating, binge eating, abnormal attitudes to eating and weight, low self-esteem, stress, and depression are associated with dietary restraint or body dissatisfaction. In analyses that included both restraint and body dissatisfaction as independent predictors, restraint was associated only with more negative attitudes to eating, whereas body dissatisfaction was significantly associated with all the adverse outcomes. These results cast doubt on the proposition that restrained eating is a primary cause of bulimic symptoms, emotional eating, and psychological distress seen in individuals who are trying to control their weight, and rather suggest that body dissatisfaction is the key factor. 相似文献
953.
Preference orderings among a set of options may depend on the elicitation method (e.g., choice or pricing); these preference reversals challenge traditional decision theories. Previous attempts to explain these reversals have relied on allowing utility of the options to change across elicitation methods by changing the decision weights, the attribute values, or the combination of this information--still, no theory has successfully accounted for all the phenomena. In this article, the authors present a new computational model that accounts for the empirical trends without changing decision weights, values, or combination rules. Rather, the current model specifies a dynamic evaluation and response process that correctly predicts preference orderings across 6 elicitation methods, retains stable evaluations across methods, and makes novel predictions regarding response distributions and response times. 相似文献
954.
The authors examined the relationship between sociotropy and perceptions of interpersonal relationships and subsequent eating disorder symptoms among young women. In Study 1, 118 women from a liberal arts college in northern Wisconsin completed self-report measures of sociotropy, perceived close social support, and eating disorder symptoms. The women returned 6 weeks later to complete the same measures. After controlling for initial levels of reported eating disturbances, higher levels of Time 1 sociotropy and reductions in perceived social support at Times 1 and 2 made unique contributions to eating disturbances at Time 2, although the interaction of Time 1 sociotropy and Time 2 social support did not add to the model. In Study 2, 138 women completed measures of eating disturbances, sociotropy, and interpersonal hassles on two occasions, 10 weeks apart. Self-reported eating pathology at Time 1 accounted for most of the variance in Time 2 eating disorder symptoms, but increased eating disturbances also were predicted by measures of interpersonal hassles. A final regression analysis using combined samples indicated that both T1 and T2 measures of interpersonal functioning made unique contributions to changes in reported eating disturbances. In sum, the findings suggested that perceptions of reduced support in close relationships and increased interpersonal hassles contribute to increases in reported eating disturbances among college-aged women, independent of baseline levels of eating disturbances and a highly sociotropic personality style. 相似文献
955.
Johnson BM Miltenberger RG Egemo-Helm K Jostad CM Flessner C Gatheridge B 《Journal of applied behavior analysis》2005,38(1):67-78
This study examined the effectiveness of individual behavioral skills training in conjunction with in situ training in teaching 13 preschool children abduction prevention skills. Children's performance was measured during baseline, training, and at 2-week, 1-month, and 3-month follow-ups using in situ assessments in which abduction prevention skills were measured in naturalistic settings. Results revealed that all the children learned the skills and all the children available at the 2-week and 1-month follow-ups maintained the skills at criterion level. All but 3 children's criterion-level performances were maintained at the 3-month follow-up as well. 相似文献
956.
Miltenberger RG Gatheridge BJ Satterlund M Egemo-Helm KR Johnson BM Jostad C Kelso P Flessner CA 《Journal of applied behavior analysis》2005,38(3):395-398
This study evaluated behavioral skills training with added in situ training for teaching safety skills to prevent gun play. Following baseline, each child received two sessions of behavioral skills training and one in situ training session. Additional in situ training sessions were conducted until the child exhibited the safety skills (don't touch the gun, get away, and tell an adult). All children acquired and maintained the safety skills at a 3-month follow-up. In addition, of the 7 children assessed in a dyad situation, all exhibited the correct skills in the presence of another child. 相似文献
957.
Little is known about whether infants perceive meter, the underlying temporal structure of music. We employed a habituation paradigm to examine whether 7-month-old infants could categorize rhythmic and melodic patterns on the basis of the underlying meter, which was implied from event and accent frequency of occurrence. In Experiment 1, infants discriminated duple and triple classes of rhythm on the basis of implied meter. Experiment 2 replicated this result while controlling for rhythmic grouping structure, confirming that infants perceived metrical structure despite occasional ambiguities and conflicting group structure. In Experiment 3, infants categorized melodies on the basis of contingencies between metrical position and pitch. Infants presented with metrical melodies detected reversals of pitch/meter contingencies, while infants presented with non-metrical melodies showed no preference. Results indicate that infants can infer meter from rhythmic patterns, and that they may use this metrical structure to bootstrap their knowledge acquisition in music learning. 相似文献
958.
There are certain simple rotations of objects that most people cannot reason about accurately. Reliable gaps in the understanding of a fundamental physical domain raise the question of how learning to reason in that domain might proceed. Using virtual reality techniques, this project investigated the nature of learning to reason across the domain of simple rotations. Learning consisted of the acquisition of spatial intuitions: there was encoding of useful spatiotemporal information in specific problem types and a gradual accumulation of this understanding across the domain. This pattern of learning through the accumulation of intuitions is especially interesting for rotational motion, in which an elegant domain-wide kinematics is available to support insightful learning. Individual ability to reason about rotations correlated highly with mastery motivation, skill in fluid reasoning, and skill in reasoning about spatial transformations. Thus, general cognitive advantages aided the understanding of individual rotations without guaranteeing immediate generalization across the domain. 相似文献
959.
Jermann F Van der Linden M Adam S Ceschi G Perroud A 《Behaviour research and therapy》2005,43(5):681-690
The present study examines controlled and automatic uses of memory in clinically depressed patients by applying the Process Dissociation Procedure developed by Jacoby (1991) to a stem completion memory task with short and long retention intervals. The results show that the contribution of controlled processes is lower in depressed patients than in controls, especially for the longest retention interval, whereas the contribution of automatic processes is equivalent in both groups and unaffected by the length of the retention interval. These findings are discussed in a cognitive control framework. 相似文献
960.
Worsdell AS Iwata BA Dozier CL Johnson AD Neidert PL Thomason JL 《Journal of applied behavior analysis》2005,38(4):511-527
A great deal is known about the effects of positive reinforcement on response acquisition; by contrast, much less research has been conducted on contingencies applied to errors. We examined the effects of response repetition as an error-correction procedure on the sight-word reading performance of 11 adults with developmental disabilities. Study 1 compared single-response (SR) repetition and multiple-response (MR) repetition, and results showed that all 6 participants acquired more sight words with the MR procedure. Study 2 compared MR error correction following every incorrect response (continuous) and following one third of incorrect responses (intermittent), and results showed that all 6 participants acquired more sight words when error correction was continuous. Study 3 compared MR error correction in which errors required practice of the training word (relevant) versus a different word (irrelevant), and results showed that 3 of 9 participants showed better performance under the relevant condition; however, all participants showed improvement even under the irrelevant condition. Findings are discussed in terms of the behavioral processes by which error correction may enhance performance during acquisition. 相似文献