全文获取类型
| 收费全文 | 6225篇 |
| 免费 | 286篇 |
专业分类
| 6511篇 |
出版年
| 2024年 | 18篇 |
| 2023年 | 29篇 |
| 2022年 | 33篇 |
| 2021年 | 111篇 |
| 2020年 | 152篇 |
| 2019年 | 463篇 |
| 2018年 | 351篇 |
| 2017年 | 460篇 |
| 2016年 | 449篇 |
| 2015年 | 414篇 |
| 2014年 | 380篇 |
| 2013年 | 699篇 |
| 2012年 | 369篇 |
| 2011年 | 312篇 |
| 2010年 | 288篇 |
| 2009年 | 277篇 |
| 2008年 | 289篇 |
| 2007年 | 212篇 |
| 2006年 | 175篇 |
| 2005年 | 176篇 |
| 2004年 | 148篇 |
| 2003年 | 144篇 |
| 2002年 | 150篇 |
| 2001年 | 97篇 |
| 2000年 | 82篇 |
| 1999年 | 50篇 |
| 1998年 | 20篇 |
| 1997年 | 16篇 |
| 1996年 | 16篇 |
| 1995年 | 13篇 |
| 1994年 | 15篇 |
| 1993年 | 6篇 |
| 1992年 | 11篇 |
| 1991年 | 7篇 |
| 1990年 | 9篇 |
| 1989年 | 4篇 |
| 1988年 | 9篇 |
| 1987年 | 5篇 |
| 1986年 | 4篇 |
| 1985年 | 5篇 |
| 1984年 | 2篇 |
| 1983年 | 5篇 |
| 1982年 | 7篇 |
| 1981年 | 3篇 |
| 1980年 | 6篇 |
| 1979年 | 5篇 |
| 1978年 | 5篇 |
| 1977年 | 3篇 |
| 1976年 | 2篇 |
| 1960年 | 1篇 |
排序方式： 共有6511条查询结果，搜索用时 15 毫秒
881.
During times of macroeconomic instability, the prospect of personal financial deficiency becomes a pervasive concern. This research examined the psychological consequences of contemplating threatening economic futures. In two experiments, we tested whether economic threat undermined the satisfaction of the basic psychological needs for competence and autonomy. In Experiment 1, Canadian university students primed with an economic threat (compared with a threat‐neutral topic) reported feeling less competent and autonomous. In Experiment 2, American adults primed with an economic threat reported less competence and autonomy compared to both those primed with (a) a noneconomic threat and (b) a threat‐neutral topic. Participants under economic threat also reported lower well‐being compared with threat‐neutral participants. This effect was mediated by self‐perceived competence and autonomy. 相似文献
882.
Hugo E. Reyes‐Huerta Cristiano V. dos Santos 《Journal of the experimental analysis of behavior》2016,106(2):117-133
Human delay discounting is usually studied with experimental protocols that use symbols to express delay and amount. In order to further understand discounting, we evaluated whether the absence of numbers to represent reward amounts affects discount rate in general, and whether the magnitude effect is generalized to nonsymbolic situations in particular. In Experiment 1, human participants were exposed to a delay‐discounting task in which rewards were presented using dots to represent monetary rewards (nonsymbolic); under this condition the magnitude effect did not occur. Nevertheless, the magnitude effect was observed when equivalent reward amounts were presented using numbers (symbolic). Moreover, in estimation tasks, magnitude increments produced underestimation of large amounts. In Experiment 2, participants were exposed only to the nonsymbolic discounting task and were required to estimate reward amounts in each trial. Consistent with Experiment 1, the absence of numbers representing reward amounts produced similar discount rates of small and large rewards. These results suggest that value of nonsymbolic rewards is a nonlinear function of amount and that value attribution depends on perceived difference between the immediate and the delayed nonsymbolic rewards. 相似文献
883.
Tiffany Kodak Vincent Campbell Samantha Bergmann Brittany LeBlanc Eva Kurtz‐Nelson Tom Cariveau Shaji Haq Patricia Zemantic Jacob Mahon 《Journal of applied behavior analysis》2016,49(3):532-547
Prior research shows that learners have idiosyncratic responses to error‐correction procedures during instruction. Thus, assessments that identify error‐correction strategies to include in instruction can aid practitioners in selecting individualized, efficacious, and efficient interventions. The current investigation conducted an assessment to compare 5 error‐correction procedures that have been evaluated in the extant literature and are common in instructional practice for children with autism spectrum disorder (ASD). Results showed that the assessment identified efficacious and efficient error‐correction procedures for all participants, and 1 procedure was efficient for 4 of the 5 participants. To examine the social validity of error‐correction procedures, participants selected among efficacious and efficient interventions in a concurrent‐chains assessment. We discuss the results in relation to prior research on error‐correction procedures and current instructional practices for learners with ASD. 相似文献
884.
In this study, we present a more accurate method for correcting for range restriction (Case V) that expands upon Bryant and Gokhale's (1972) method. We further present detailed steps to incorporate the Case V method into Schmidt and Hunter's (2015) psychometric meta‐analysis methods (both individual correction and artifact distribution approaches). We then evaluate the accuracy of the Case V method vis‐à‐vis existing methods. Monte‐Carlo simulation results indicate that the Case V method provides very accurate estimates for the mean true score correlation and reasonably accurate estimates for the true standard deviation. More important, Case V almost always provides more accurate results than alternative methods (particularly, Case IV). To illustrate how the Case V method works with real data, we conduct a reanalysis of Judge, Heller, and Mount's (2002) meta‐analysis examining the relationships between the Big 5 personality traits and job satisfaction. Results indicate that the true score correlations between the Big 5 traits and job satisfaction have been underestimated, whereas their true standard deviations have been overestimated. Implications for range restriction corrections in organizational research are discussed. 相似文献
885.
What roles do CEOs play in firm performance? To address this question, the management field has accumulated a substantial amount of research over the past 3 decades built on upper echelons theory (UET), which posits that CEO characteristics manifest in firm strategic actions and, in this way, future firm performance. Hence, there is a need to systematically amass and take stock of prior empirical findings for UET testing and development. We use meta‐analytic techniques to synthesize prior UET research on the relationships among commonly studied CEO characteristics, firm strategic actions, and future firm performance. Based on 308 studies, meta‐analytic results generally support UET's predictions with a few exceptions: CEO characteristics (i.e., tenure, formal education, prior career experience, and positive self‐concept) are significantly associated with firm strategic actions, which in turn are significantly related to future firm performance. Moreover, CEO characteristics (i.e., age, tenure, formal education, and prior career experience) are positively related to future firm performance. In addition, fine‐grained analyses have revealed interesting and important relationships between specific measures of CEO characteristics (e.g., CEO prior task experience) and firm outcomes (e.g., firm strategic actions that match with CEO prior task experience). Implications for theory, future research, and practice are discussed. 相似文献
886.
Herman Aguinis Ernest O'Boyle Jr. Erik Gonzalez‐Mulé Harry Joo 《Personnel Psychology》2016,69(1):3-66
We use the metatheoretical principle of cumulative advantage as a framework to understand the presence of heavy‐tailed productivity distributions and productivity stars. We relied on 229 datasets including 633,876 productivity observations collected from approximately 625,000 individuals in occupations including research, entertainment, politics, sports, sales, and manufacturing, among others. We implemented a novel methodological approach developed in the field of physics to assess the precise shape of the productivity distribution rather than relying on a normal versus nonnormal artificial dichotomy. Results indicate that higher levels of multiplicity of productivity, monopolistic productivity, job autonomy, and job complexity (i.e., conductors of cumulative advantage) are associated with a higher probability of an underlying power law distribution, whereas lower productivity ceilings (i.e., insulator of cumulative advantage) are associated with a lower probability. In addition, higher levels of multiplicity of productivity, monopolistic productivity, and job autonomy were associated with a greater proportion of productivity stars (i.e., productivity distributions with heavier tails), whereas lower productivity ceilings were associated with a smaller proportion of productivity stars (i.e., productivity distributions with lighter tails). Results serve as a building block for future theory development and testing efforts aimed at understanding why, when, and how the distribution of individual productivity may follow a nonnormal curve—and to what extent. We also discuss implications for organizations and management in terms of the design and implementation of human resource systems (e.g., selection, training, compensation), as well as for individuals interested in becoming productivity stars themselves. 相似文献
887.
Unni K. Moksnes Mary‐Elizabeth Bradley Eilertsen Magdalena Lazarewicz 《Scandinavian journal of psychology》2016,57(1):22-29
This cross‐sectional study investigated gender and age differences on domains of stress, self‐esteem and depressive symptoms, as well as the association between those domains using a sample of Norwegian adolescents (N = 1,239). The data was analysed using Pearson product moment correlation, t‐tests, and hierarchical multiple regression analyses. The results showed significant differences between genders. Girls scored higher on five of seven stressor domains comprising peer pressure, home life, school attendance, school/leisure conflict and school performance as well as depression, while boys scored significantly higher on self‐esteem. The hierarchical multiple regression analysis showed that higher stress from school performance and school attendance related significantly to more depressive symptoms in both genders. Additionally, stress of home life significantly related to more depressive symptoms in girls, whereas stress of peer pressure was significant in association with depressive symptoms in boys. A strong, inverse association was found between self‐esteem and depression controlled for stress, especially in girls. Self‐esteem was not found to be a moderator of any stressor‐depression interactions. In conclusion, the results give support for the significant role of stress and self‐esteem on the experience of depressive symptoms in adolescents. 相似文献
888.
Social networking sites (SNSs) are extremely popular for providing users with a convenient platform for acquiring social connections and thereby feeling relatedness. Plenty of literature has shown that mental representations of social support can reduce the perception of physical pain. The current study tested whether thinking about SNS would interfere with users’ perceptions of experimentally induced pain. Ninety‐six undergraduate Facebook users were recruited to participate in a priming‐based experiment. They were randomly assigned to one of the three study conditions (SNS prime, neutral prime, or no prime) via rating the aesthetics of logos. The results showed that participants exposed to SNS primes reported less pain of immersion in hot water than did both control groups (neutral‐ and no‐prime). Felt relatedness mediated the link between SNS primes and diminished pain perceptions. This research provides the first demonstration that thinking about SNS can lower experienced physical pain among Facebook users. Online social networking may serve as an analgesic buffer against pain experience than previously thought. The SNS‐enabled analgesia has far reaching implications for pain relief applications and the enhancement of well‐being in human‐interaction techniques. 相似文献
889.
Estíbaliz Aragón José I. Navarro Manuel Aguilar Gamal Cerda Manuel García‐Sedeño 《Scandinavian journal of psychology》2016,57(6):489-494
Early math skills are determined by higher cognitive processes that are particularly important for acquiring and developing skills during a child's early education. Such processes could be a critical target for identifying students at risk for math learning difficulties. Few studies have considered the use of a structural equation method to rationalize these relations. Participating in this study were 207 preschool students ages 59 to 72 months, 108 boys and 99 girls. Performance with respect to early math skills, early literacy, general intelligence, working memory, and short‐term memory was assessed. A structural equation model explaining 64.3% of the variance in early math skills was applied. Early literacy exhibited the highest statistical significance (β = 0.443, p < 0.05), followed by intelligence (β = 0.286, p < 0.05), working memory (β = 0.220, p < 0.05), and short‐term memory (β = 0.213, p < 0.05). Correlations between the independent variables were also significant (p < 0.05). According to the results, cognitive variables should be included in remedial intervention programs. 相似文献
890.
Riikka Korja Jorma Piha Riia Otava Chloe Lavanchy‐scaiola Sari Ahlqvist‐Björkroth Minna Aromaa Hannele Räihä STEPS‐study 《Scandinavian journal of psychology》2016,57(4):305-312
Low marital satisfaction has been shown to be a risk factor for early parenthood and parent‐child relationship problems (Erel & Burman, 1995 ; McHale, 1995 ). The aim of this study was to assess how parental reports of marital satisfaction related to family alliance and coordination in the observed triadic interaction. The study group included 120 families. Marital satisfaction was evaluated during pregnancy, at 4 months, and at 18 months using the Revised Dyadic Adjustment Scale (RDAS; Busby, Christensen, Crane & Larsson, 1995 ) for both parents. Mother‐father‐child interaction was analyzed in the Lausanne Triadic Play setting and coded using the Family Alliance Assessment Scale (Favez, Lavanchy Scaiola, Tissot, Darwiche & Frascarolo, 2011 ) when the child reached 18 months of age. The mother's higher marital satisfaction at every measuring point was associated with a cooperative family alliance and/or higher family coordination at 18 months. The father's experience of marital satisfaction was not related to family interaction at any assessment point. Our study suggests that a mother's experience of lower marital satisfaction during pregnancy may be an early sign of later problems in family relationships. 相似文献