全文获取类型
收费全文 | 195篇 |
免费 | 16篇 |
国内免费 | 18篇 |
出版年
2023年 | 4篇 |
2022年 | 5篇 |
2021年 | 8篇 |
2020年 | 7篇 |
2019年 | 14篇 |
2018年 | 8篇 |
2017年 | 8篇 |
2016年 | 13篇 |
2015年 | 7篇 |
2014年 | 3篇 |
2013年 | 30篇 |
2012年 | 9篇 |
2011年 | 1篇 |
2010年 | 7篇 |
2009年 | 9篇 |
2008年 | 6篇 |
2007年 | 6篇 |
2006年 | 8篇 |
2005年 | 8篇 |
2004年 | 7篇 |
2003年 | 5篇 |
2002年 | 5篇 |
2001年 | 7篇 |
2000年 | 6篇 |
1999年 | 4篇 |
1998年 | 6篇 |
1997年 | 2篇 |
1996年 | 6篇 |
1995年 | 6篇 |
1994年 | 1篇 |
1993年 | 3篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1982年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
排序方式: 共有229条查询结果,搜索用时 15 毫秒
151.
The available statistical tests of the equality of nonindependent alpha reliability coefficients require that the product of the number of test parts times the number of subjects be quite large—1000 or more. A modification of one of these tests is derived which avoids this limitation. Monte Carlo studies indicate that the modified test effectively controls the Type I error rate with as few as 2 or 3 test parts and 50 subjects. This means the modified test can be safely employed in comparisons between interrater reliabilities. 相似文献
152.
In this case study of economists' forecasts concerning economic downturn, we examine key issues concerning the psychology of prediction and the controversy surrounding the value of expertise in forecasting. We examine when experts' knowledge promotes forecast accuracy and whether biases found in psychological studies (including underutilization of relevant base rates and tendencies to extreme prediction) occur in these economic forecasts. Experts' forecasts were compared to forecasts derived from base-rate models that relied on the historical frequencies of economic downturns. The performance patterns of the experts and models crossed over the forecast horizon. Experts outperformed models in shorter-term forecasting, whereas models outperformed experts in longer-term forecasting. These results highlight the abilities and limits of experts and models in prediction and the sources of their inaccuracy. 相似文献
153.
Norbert M. Samuelson 《Zygon》1993,28(2):267-282
Abstract. Borowitz's book is primarily a systematic response by a liberal Jewish theologian to his perceived challenges from rationalism on one hand and postmodernism on the other. It is within this context that Borowitz discusses issues of the relationship between modern science and Judaism. The first part of this essay is a summary of Borowitz's book. Here I locate Borowitz's place in the general discipline of Jewish philosophy and theology. The second part of the paper is a critique of Borowitz's discussion of postmodernism and liberalism. It is in this concluding section that the issues raised by contemporary science for Jewish religious thought are discussed. 相似文献
154.
C. Hendricks Brown 《American journal of community psychology》1993,21(5):635-664
Described a new class of nonparametric regression procedures called generalized additive models (Hastie and Tibshirani, 1991) for assessing intervention effects in mental health preventive field trials. Such models are often better than analysis of covariance models for examining intervention effects adjusted for one or more baseline characteristics and for assessing potential interactions between the intervention and baseline characteristics. Because of these advantages, generalized additive models are important tools analysts should consider in evaluating preventive field trials. We apply generalized additive models as well as more standard linear models to data from a preventive trial aimed at improving mental health and school performance outcomes through a universal intervention in first and second grades. Practical guidance is given to researchers regarding when generalized additive models would be beneficial. 相似文献
155.
156.
Abstract. Fritjof Capra's The Tao of Physics , one of several popularizations paralleling Eastern mysticism and modern physics, is critiqued, demonstrating that Capra gives little attention to the differing philosophies of physics he employs, utilizing whatever interpretation suits his purposes, without prior justification. The same critique is applied and similar conclusions drawn, about some recent attempts at relating theology and physics. In contrast, we propose the possibility of maintaining a cogent relationship between these disciplines by employing theological hypotheses to account for aspects of physics that are free from interpretive difficulties, such as the ability to create mathematical structures with extraordinary predictive success. 相似文献
157.
158.
Philip C. Kendall Ellen C. Flannery-Schroeder 《Journal of abnormal child psychology》1998,26(1):27-38
This article identifies and addresses three methodological domains relevant to the treatment of anxiety disorders in youth: (a) procedural matters, (b) the assessment of anxious distress, and (c) the analysis of treatment-produced change. Procedural topics include the need to manualize treatment, have diversity among participants and comparability of the duration of treatment and control conditions, and control for medication status. Multiple-method measurement issues include child and parent reports, observations, and structured interviewing. Our examination of change issues considers comorbidity, analyzing the intent-to-treat sample, treatment spillover, and clinical as well as statistical significance. Problems are identified and potential ameliorative strategies are offered. 相似文献
159.
Mullins E Agunwamba CC Donohoe AJ 《Journal of the experimental analysis of behavior》1982,37(2):323-327
In a review of 103 sets of data from 23 different studies of choice, Baum (1979) concluded that whereas undermatching was most commonly observed for responses, the time measure generally conformed to the matching relation. A reexamination of the evidence presented by Baum concludes that undermatching is the most commonly observed finding for both measures. Use of the coefficient of determination by both Baum (1979) and de Villiers (1977) for assessing when matching occurs is criticized on statistical grounds. An alternative to the loss-in-predictability criterion used by Baum (1979) is proposed. This alternative statistic has a simple operational meaning and is related to the usual F-ratio test. It can therefore be used as a formal test of the hypothesis that matching occurs. Baum (1979) also suggests that slope values of between .90 and 1.11 can be considered good approximations to matching. It is argued that the establishment of a fixed interval as a criterion for determining when matching occurs, is inappropriate. A confidence interval based on the data from any given experiment is suggested as a more useful method of assessment. 相似文献
160.