全文获取类型
收费全文 | 1195篇 |
免费 | 69篇 |
出版年
2021年 | 12篇 |
2020年 | 24篇 |
2019年 | 25篇 |
2018年 | 43篇 |
2017年 | 36篇 |
2016年 | 34篇 |
2015年 | 36篇 |
2014年 | 37篇 |
2013年 | 129篇 |
2012年 | 57篇 |
2011年 | 66篇 |
2010年 | 39篇 |
2009年 | 40篇 |
2008年 | 49篇 |
2007年 | 53篇 |
2006年 | 29篇 |
2005年 | 27篇 |
2004年 | 32篇 |
2003年 | 36篇 |
2002年 | 32篇 |
2001年 | 25篇 |
2000年 | 19篇 |
1999年 | 21篇 |
1998年 | 12篇 |
1997年 | 10篇 |
1996年 | 12篇 |
1995年 | 15篇 |
1994年 | 13篇 |
1993年 | 14篇 |
1992年 | 12篇 |
1991年 | 15篇 |
1990年 | 16篇 |
1989年 | 12篇 |
1988年 | 20篇 |
1987年 | 10篇 |
1986年 | 12篇 |
1985年 | 19篇 |
1984年 | 17篇 |
1982年 | 14篇 |
1979年 | 14篇 |
1978年 | 7篇 |
1977年 | 7篇 |
1976年 | 7篇 |
1972年 | 10篇 |
1971年 | 8篇 |
1970年 | 6篇 |
1969年 | 7篇 |
1968年 | 7篇 |
1967年 | 8篇 |
1965年 | 6篇 |
排序方式: 共有1264条查询结果,搜索用时 156 毫秒
931.
Benita Jackson Laura D Kubzansky Sheldon Cohen David R Jacobs Rosalind J Wright 《Health psychology》2007,26(3):333-340
OBJECTIVE: To examine the cross-sectional association between hostility and pulmonary function (PF) and its consistency across race/ethnicity-gender groups. DESIGN: Data were from the Coronary Artery Risk Development in (Young) Adults (CARDIA) cohort study (N=4,629). Participants were recruited from 4 metropolitan areas in the United States, ages 18-30 years at baseline in 1985-1986, approximately balanced across race/ethnicity (Black, White) and gender. MAIN OUTCOME MEASURES: Main outcome measures were percent predicted values for forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC). RESULTS: In full-sample multiple linear regression analyses, each 1 standard deviation (SD) increase in hostility was associated with a 0.66% decrease in FEV-sub-1 (p=.0002) and a 0.60% decrease in FVC (p=.0006). This inverse association of hostility with PF remained after controlling for age, height, current socioeconomic status (SES), participant smoking status, and asthma and is more consistent than that of smoking and PF. In stratified analyses, each 1 SD increase in hostility predicted statistically significant reductions in PF for Black women, White women, and Black men. For White men, hostility showed no statistically significant relation with PF, although the pattern relating hostility to PF was similar to the pattern in the other three groups. Further, both of the post hoc three-way interaction terms for hostility, race/ethnicity, and gender predicting FEV-sub-1 and FVC were nonsignificant. CONCLUSION: PF was inversely associated with hostility across race/ethnicity and gender, independent of age, height, current SES, smoking, and asthma. On the basis of these cross-sectional findings, the authors hypothesize that higher hostility will predict a more rapid decline in PF. 相似文献
932.
933.
Interval estimates of the Pearson, Kendall tau-a and Spearman correlations are reviewed and an improved standard error for the Spearman correlation is proposed. The sample size required to yield a confidence interval having the desired width is examined. A two-stage approximation to the sample size requirement is shown to give accurate results. 相似文献
934.
Margaret J. Wright Glen A. Smith Gina M. Geffen Laurie B. Geffen Nicholas G. Martin 《Intelligence》2000,28(4):239
Performance measures on a coincidence timing task have previously been associated with psychometric IQ suggesting that the ability of an individual to devote processing resources at the required time may account for some of intelligence test variance. Using the twin design, this study investigates whether genetic variability explains some of the variance in coincidence timing and whether common genetic factors account for the association with intellectual functioning. Fifty-five 16-year old twin pairs (28 MZ, 27 DZ) were tested. Individual differences in number of hits (HITS), mean absolute error (MAE), and intra-individual trial-to-trial consistency (SD) were significantly influenced by genetic factors, accounting for approximately 50 percent of the variance. The correlation between coincidence timing and psychometric IQ was confirmed and ranged from 0.11 to 0.53 with a mean correlation of 0.33. In the limited sample, the correlation between IQ and the coincidence timing measures appeared to be mediated largely by a unique environmental factor, with only a small loading of SD on the genetic factor influencing IQ. However, as the confidence intervals in the other genetic cross loadings are large, we cannot exclude the possibility of a much stronger genetic influence. 相似文献
935.
This study reviews research on the process and outcome of parent training (PT) conducted over the past 20 years. A distinction is made between parent behavioral training and other forms of PT. It is concluded that all forms of PT research have become more molecular in the questions addressed and otherwise more scientifically rigorous. Compared to other forms of psychotherapeutic intervention, PT produces more consistently positive outcome changes and is clearly more economical of professional time and thus of consumer cost. As such, although less than 3% of all previous PT studies have dealt with prevention, PT is recommended as a potential form of secondary prevention worth consideration by applied and preventive psychologists. 相似文献
936.
Daniel B. Wright George D. Gaskell Colm A. O'Muircheartaigh 《Applied cognitive psychology》1997,11(1):35-46
The way in which people estimate when an event occurred and the accuracy of their estimates are of concern both to psychologists interested in the structure of event memory and to other researchers who, for a variety of reasons, rely on the accuracy of people's temporal estimates. Over 2,000 subjects were asked to say when two major news events, Thatcher's resignation and the Hillsborough football disaster, happened. By embedding the questions in a face-to-face survey we hoped to maximize the probability of subjects using a relatively simple estimation heuristic, previously described as the accessibility principle. This predicts that underestimation of elapsed time should be associated with clearer memories. This hypothesis was not corroborated. We discuss which aspects of the accessibility principle can be retained. © 1997 by John Wiley & Sons, Ltd. 相似文献
937.
For many years psychologists have conducted carefully balanced and controlled experiments in order to understand the processes involved with line-up identifications. While the results are useful, several researchers have questioned whether these experiments are applicable to real line-ups. In this study we compare the results from two specialist line-up suites with the results from ordinary police stations. Witnesses at the suites chose foils more often than witnesses at the police stations. However, characteristics of the crimes, witnesses and suspects at the suites differed from those conducted at the stations. Many of these characteristics are also associated with increased proportions of foils being chosen. For example, the specialist suites tended to accommodate more non-white suspects, more crimes of violence and, at the time of this research, their line-ups occurred longer after the event. Several of the methodological difficulties of using data from real line-ups are discussed and appropriate statistical techniques are introduced. 相似文献
938.
939.
Howard Joshua L. Gagné Marylène Van den Broeck Anja Guay Frédéric Chatzisarantis Nikos Ntoumanis Nikos Pelletier Luc G. 《Motivation and emotion》2020,44(4):534-548
Motivation and Emotion - Self-determination Theory differentiates various types of motivation, each of which have different consequences for well-being and behavior. Despite broad agreement... 相似文献
940.