全文获取类型
收费全文 | 41129篇 |
免费 | 1476篇 |
国内免费 | 14篇 |
出版年
2018年 | 649篇 |
2017年 | 574篇 |
2016年 | 647篇 |
2015年 | 472篇 |
2014年 | 565篇 |
2013年 | 3795篇 |
2012年 | 1013篇 |
2011年 | 1031篇 |
2010年 | 649篇 |
2009年 | 640篇 |
2008年 | 970篇 |
2007年 | 892篇 |
2006年 | 828篇 |
2005年 | 713篇 |
2004年 | 682篇 |
2003年 | 700篇 |
2002年 | 679篇 |
2001年 | 1341篇 |
2000年 | 1277篇 |
1999年 | 966篇 |
1996年 | 539篇 |
1995年 | 501篇 |
1994年 | 498篇 |
1993年 | 477篇 |
1992年 | 988篇 |
1991年 | 892篇 |
1990年 | 898篇 |
1989年 | 785篇 |
1988年 | 776篇 |
1987年 | 762篇 |
1986年 | 774篇 |
1985年 | 758篇 |
1984年 | 677篇 |
1983年 | 563篇 |
1982年 | 427篇 |
1981年 | 452篇 |
1980年 | 428篇 |
1979年 | 648篇 |
1978年 | 484篇 |
1976年 | 434篇 |
1975年 | 584篇 |
1974年 | 599篇 |
1973年 | 665篇 |
1972年 | 611篇 |
1971年 | 555篇 |
1970年 | 510篇 |
1969年 | 484篇 |
1968年 | 622篇 |
1967年 | 523篇 |
1966年 | 517篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
David P. Jarmolowicz Tadd D. Schneider Justin C. Strickland Amanda S. Bruce Derek D. Reed Jared M. Bruce 《Journal of the experimental analysis of behavior》2023,119(2):275-285
The reinforcer pathology model posits that core behavioral economic mechanisms, including delay discounting and behavioral economic demand, underlie adverse health decisions and related clinical disorders. Extensions beyond substance use disorder and obesity, however, are limited. Using a reinforcer pathology framework, this study evaluates medical adherence decisions in patients with multiple sclerosis. Participants completed behavioral economic measures, including delay discounting, probability discounting, and a medication purchase task. A medical decision-making task was also used to evaluate how sensitivity to mild side effect risk and efficacy contributed to the likelihood of taking a hypothetical disease-modifying therapy. Less steep delay discounting and more intense (greater) medication demand were independently associated with greater adherence to the medication decision-making procedure. More generally, the pattern of interrelations between the medication-specific and general behavioral economic metrics was consistent with and contributes to the reinforcer pathology model. Additional research is warranted to expand these models to different populations and health behaviors, including those of a positive health orientation (i.e., medication adherence). 相似文献
992.
This review involved a systematic analysis of equivalence-based instruction (EBI) that aimed to improve food-size interventions in diverse populations. Systematic searches identified seven studies published since 2010 that met inclusion criteria. These studies were analyzed according to their participants, design, setting, content taught, training structures, training protocol, testing format, treatment integrity, and outcomes. Results showed EBI procedures for teaching food estimation skills have been mostly implemented with adults. The type of content taught in the identified studies included carbohydrate ranges, portion size with food and non-food items, measuring cups and nutritional content of calories. Majority of included studies used one-to-many training structure and simultaneous protocols for teaching stimulus relations. Five studies completed a generalization probe and three studies reported treatment integrity data. Overall, all participants demonstrated skill acquisition of novel relations between food and portion measurement aides. Recommendations for future research and clinical applications of EBI in teaching food portion estimation are presented. 相似文献
993.
Christopher D. Nye Kevin A. Hoff 《International Journal of Selection & Assessment》2023,31(4):494-499
The paper by Wille and De Fruyt suggests that vocational interests should be used throughout the human resources cycle and provides a useful model that can facilitate the application of interests throughout this process. This commentary builds on their review to discuss the unique benefits and challenges of implementing vocational interests in the employee selection process. Using research from the employee selection literature, we also discuss potential solutions for many of the issues raised by Wille and De Fruyt. Therefore, our commentary is meant to supplement the focal article and answer specific questions about why and how vocational interests can be used in this high-stakes setting. 相似文献
994.
Sydney L. Reichin Danielle M. Tarantino Rustin D. Meyer 《International Journal of Selection & Assessment》2023,31(3):456-468
COVID-19 has abruptly and unexpectedly transformed nearly every aspect of work, including but not limited to increased unemployment rates and uncertainty regarding future job prospects. Response distortion has always been a concern given that many organizations rely on information that is self-reported by applicants regarding their potential employability (e.g., responses to self-reported personality instruments, resumes, interview responses). Drawing from the Valence-Instrumentality-Expectancy (VIE) theory of motivation, we propose that the uncertainty surrounding jobs may lead to amplified distorted responses on these measures in areas where COVID-19 was most salient. In a sample of 213 working adults [~50% female, age M = 38.48], the present study shows that increases in response distortion on a measure of conscientiousness were more pronounced as a function of (a) local COVID positivity rates and (b) job type, such that frontline workers distorted their responses the most. Findings are discussed in the context of VIE theory, personality measurement, and challenges with maintaining effective selection procedures. 相似文献
995.
996.
Gunst Noëlle Pellis Sergio M. Wandia I Nengah Leca Jean-Baptiste 《Animal cognition》2023,26(2):639-654
Animal Cognition - Self-handicapping behaviors evolved as honest signals that reliably reflect the quality of their performers. In playful activities, self-handicapping is described as... 相似文献
997.
Animal Cognition - Learning by observing others (i.e. social learning) is an important mechanism to reduce the costs of individual learning. Social learning can occur between conspecifics but also... 相似文献
998.
Few studies have evaluated best friendship dissolutions and especially the circumstances surrounding the dissolutions. In this exploratory study of young adolescents (N = 273, Mage = 11.83 years; 51% boys), we investigate young adolescents' experiences with two types of best friendship dissolution (complete dissolutions, downgrade dissolutions) and two characteristics of such experiences: initiation status (self- versus friend-initiation) and emotional reactions (degree of happiness, anger, sadness, and embarrassment). We also consider whether these characteristics of best friendship dissolutions are related to psychological difficulties (loneliness, depressive symptoms). Results indicated that most young adolescents perceive their friends initiated their recent complete and downgrade dissolutions. When young adolescents did initiate their complete dissolutions, however, they reported less negative (anger) and more positive (happiness) emotional responses. Initiation status was not related to psychological difficulties, but variability in several types of emotional responses (e.g., embarrassment) was related to variability in loneliness and depressive symptoms. Findings underscore the importance of considering not only the type of dissolution, but also the circumstances surrounding dissolutions, during early adolescence. 相似文献
999.
1000.
Ann T. Skinner Carmen Kealy Mette Ranta Aprile D. Benner Ersilia Menesini Ingrid Schoon 《Social and Personality Psychology Compass》2023,17(10):e12821
COVID-19 has altered adolescents' opportunities for developing and strengthening interpersonal skills and proficiencies. Using data from adolescents in Italy, the United States, and the United Kingdom, we examined the relation between internalizing symptoms assessed pre-pandemic or when pandemic-related restrictions were lifted (Time 1) and associated internalizing symptoms during a subsequent restrictive pandemic period (Time 2). Across all 3 countries, we found significant and consistent effect sizes in the relation between Time 1 and Time 2 internalizing symptoms. We further examined the direct and moderating impact of self-efficacy and contextual supports for adolescents' internalizing symptoms. Higher self-efficacy was associated with lower levels of internalizing symptoms at Time 2 in all 3 countries. Additionally, the relation between Time 1 and 2 internalizing symptoms was buffered by regulatory self-efficacy and peer support in Italy, but in the U.S., higher levels of general self-efficacy instead had an exacerbating effect on the relation between Times 1 and 2 internalizing symptoms. Results are discussed in the context of utilizing cross-national datasets to examine similarities in adolescent well-being over time and in the face of varying government responses to the pandemic. 相似文献