全文获取类型
收费全文 | 3644篇 |
免费 | 72篇 |
专业分类
3716篇 |
出版年
2023年 | 25篇 |
2021年 | 43篇 |
2020年 | 82篇 |
2019年 | 89篇 |
2018年 | 103篇 |
2017年 | 106篇 |
2016年 | 129篇 |
2015年 | 99篇 |
2014年 | 101篇 |
2013年 | 362篇 |
2012年 | 176篇 |
2011年 | 156篇 |
2010年 | 96篇 |
2009年 | 89篇 |
2008年 | 154篇 |
2007年 | 170篇 |
2006年 | 128篇 |
2005年 | 129篇 |
2004年 | 130篇 |
2003年 | 123篇 |
2002年 | 112篇 |
2001年 | 67篇 |
2000年 | 59篇 |
1999年 | 59篇 |
1998年 | 48篇 |
1997年 | 44篇 |
1996年 | 35篇 |
1995年 | 44篇 |
1994年 | 47篇 |
1993年 | 40篇 |
1992年 | 38篇 |
1991年 | 33篇 |
1990年 | 37篇 |
1989年 | 31篇 |
1988年 | 30篇 |
1987年 | 28篇 |
1986年 | 33篇 |
1985年 | 32篇 |
1984年 | 29篇 |
1983年 | 27篇 |
1982年 | 43篇 |
1981年 | 28篇 |
1980年 | 20篇 |
1979年 | 26篇 |
1978年 | 24篇 |
1977年 | 21篇 |
1976年 | 23篇 |
1974年 | 24篇 |
1968年 | 16篇 |
1966年 | 16篇 |
排序方式: 共有3716条查询结果,搜索用时 15 毫秒
121.
Is conduct disorder (CD) as defined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV; American Psychiatric Association, 1994) a unitary entity, or do variants of CD exist? We addressed this question, using data collected from the parents of 1,669 Australian boys, aged 6–17. Parents were interviewed to assess DSM-IV Conduct Disorder (DSM-IV CD) criteria. Results revealed 2 subfactors of DSM-IV CD symptoms, made up of overt behaviors (e.g., initiating physical fights) and covert behaviors (e.g., stealing without confrontation). Ordinary least squares regressions showed the 2 CD subfactors to be significantly and uniquely predicted by Child Behavior Checklist (CBCL; T. M. Achenbach, 1991a, 1991b) syndromes labeled Aggressive Behavior and Delinquent Behavior, respectively. The results are discussed in terms of the utility of differentiating these 2 variants of CD in future editions of the DSM. 相似文献
122.
To the extent that assessment improves the effectiveness of treatment, prevention, or other services, it can be said to be effective. If an assessment is as effective as alternatives for improving treatment and less costly, it can be said to be cost-effective. If that improvement in the effectiveness of the service is monetary or monetizable, the assessment can be judged beneficial. And, if the sum of monetary and monetizable benefits of assessment exceeds the sum of the costs of treatment, the assessment can be said to be cost-beneficial. An overview of cost-related issues is followed by practical strategies that researchers and administrators can use to measure incremental costs, incremental effectiveness, and incremental benefits of adding psychological assessments to other psychological interventions. 相似文献
123.
Authors tested the validity of the Peabody Picture Vocabulary Test-Third Edition (PPVT-III) as a screening measure for intelligence and achievement. The PPVT-III and Kaufman Assessment Battery for Children (KABC) were administered to 416 African American children of low socioeconomic status in a counterbalanced design. Results indicated that the PPVT-III correlated .58 with the KABC Mental Processing Composite (MPC) score; however, participants scored significantly lower (M = 8.3 points) on the PPVT-III than on the MPC. Although receiver operating characteristic (ROC) analyses supported the use of the PPVT-III as a valid intellectual and achievement screener, the selection of a single cutoff score for the PPVT-III was problematic. The purpose of the screening program should guide selection of a cutoff score for the PPVT-III. 相似文献
124.
125.
126.
127.
In this article the most important text of twentieth-century Russian intellectual history, Landmarks (Vekhi) (1909) comes under reexamination. Looking at the rivalry of the volume's two organizers, Mikhail Gershenzon and Petr Struve, Professor Brian Horowitz explains why Landmarks succeeded in offering such a biting critique of radical ideology, while lacking its own internal intellectual unity. 相似文献
128.
We review the recently published report by the Committee on the Prevention of Reading Difficulties in Young Children from a behavior analytic perspective. The authors prescribe what children should learn to be successful readers based on the correlates of reading and the developmental progression of reading errors. The report offers no discussion of theoretical models that can be used by teachers and parents to reform reading instruction or specific procedures that have been shown to be effective at promoting various reading skills. We discuss these omissions in terms of the level of research included in the review, the authors' structural approach to synthesizing this research, and the constructivist orientation common to many early childhood educators. The paper concludes by identifying models and strategies from the behavior analysis literature that can be used to guide instruction and offers a modest suggestion for future reviews of reading research. 相似文献
129.
This paper outlines potential research applications of the unquantified (paper or digital) electroencephalography (EEG) in psychiatry. Three main areas are highlighted: first, the need for thorough familiarity with the unquantified EEG is emphasized, including the ability to confidently recognize all normal and abnormal activities that could influence further analysis of the record as well as artifacts that can contaminate the tracings; second, the fact that definitive studies relating EEG abnormalities to psychiatric symptomatology and clinical response are lacking; and third, the potential for EEG to be utilized as a tool to decrease the risk of invasive research studies is discussed. 相似文献
130.
One of the main functions of categories is to allow inferences about new objects. However, most objects are cross-classified, and it is not known whether and how people combine information from these different categories in making inferences. In six experiments, food categories, which are strongly crossclassified (e.g., a bagel is both a bread and a breakfast food), were studied. For each food, the subjects were told fictitious facts (e.g., 75% of breads are subject to spoilage from Aspergillus molds) about two of the categories to which it belonged and then were asked to make an inference about the food (e.g., how likely is a bagel to be subject to spoilage from Aspergillus molds?). We found no more use of multiple categories in these cases of cross-classification than in ambiguous classification, in which it is uncertain to which category an item belongs. However, some procedural manipulations did markedly increase the use of both categories in inferences, primarily those that focused the subjects’ attention on the critical feature in both categories. 相似文献