全文获取类型
收费全文 | 169510篇 |
免费 | 7683篇 |
国内免费 | 155篇 |
出版年
2021年 | 1500篇 |
2020年 | 2781篇 |
2019年 | 3435篇 |
2018年 | 3451篇 |
2017年 | 3923篇 |
2016年 | 4588篇 |
2015年 | 3927篇 |
2014年 | 4801篇 |
2013年 | 23495篇 |
2012年 | 4414篇 |
2011年 | 3454篇 |
2010年 | 3796篇 |
2009年 | 4729篇 |
2008年 | 3658篇 |
2007年 | 3252篇 |
2006年 | 3879篇 |
2005年 | 3866篇 |
2004年 | 3419篇 |
2003年 | 3042篇 |
2002年 | 2833篇 |
2001年 | 3137篇 |
2000年 | 2998篇 |
1999年 | 3041篇 |
1998年 | 2826篇 |
1997年 | 2666篇 |
1996年 | 2573篇 |
1995年 | 2411篇 |
1994年 | 2384篇 |
1993年 | 2332篇 |
1992年 | 2512篇 |
1991年 | 2390篇 |
1990年 | 2205篇 |
1989年 | 2137篇 |
1988年 | 2140篇 |
1987年 | 2148篇 |
1986年 | 2125篇 |
1985年 | 2336篇 |
1984年 | 2471篇 |
1983年 | 2251篇 |
1982年 | 2363篇 |
1981年 | 2330篇 |
1980年 | 2165篇 |
1979年 | 2163篇 |
1978年 | 2148篇 |
1977年 | 2127篇 |
1976年 | 1916篇 |
1975年 | 1937篇 |
1974年 | 2017篇 |
1973年 | 1875篇 |
1972年 | 1476篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
Arthur D. Anastopoulos David C. Guevremont Terri L. Shelton George J. DuPaul 《Journal of abnormal child psychology》1992,20(5):503-520
Prior research has shown that parenting stress levels can be quite high among families of children with attention deficit hyperactivity disorder (ADHD). This study investigated the degree to which such stress was related not only to the child's ADHD, but also to various other child, parent, and family-environment circumstances. Multimethod assessments were conducted on 104 clinic-referred children with ADHD. Data collected from these subjects were entered into hierarchical multiple-regression analyses, utilizing the Parenting Stress Index as the criterion. The results showed that child and parent characteristics accounted for a substantial portion of the variance in overall parenting stress. The child's oppositional-defiant behavior and maternal psychopathology were especially potent predictors. The severity of the child's ADHD, the child's health status, and maternal health status also emerged as significant predictors. These findings are discussed in terms of their impact upon the clinical management of children with ADHD.The authors are grateful to Mary Maher and Paula Nevins for their assistance in collecting and coding the data. The authors would also like to thank Dr. Kenneth Fletcher for his helpful comments regarding the statistical analyses. 相似文献
962.
A short-term longitudinal study was conducted to determine whether self-regulation at 4 years could be predicted from child and maternal measures obtained when the children were age 24 months. The subjects were 69 children and their mothers drawn from the general community. Criterion behaviors assessed at 4 years were those suggestive of attention-deficit hyperactivity disorder. Of the 24-month child measures, maternal ratings of the child's impulsivity and attention span, plus an objective measure of delay ability, were the most effective predictors. Maternal negativity, as assessed in mother-child interaction, predicted the criterion behaviors, even after the child's behavior as an elicitor of maternal behavior was controlled. Maternal child-rearing attitudes on the dimensions of warmth and aggravation were also effective predictors, even after controlling for the child's emotionality as a possible determinant of maternal attitudes. It is argued that the results with the maternal attitude measures provide support for the hypothesis that maternal behavior is a contributor to the development of self-regulation.This research was supported by a State of Ohio Academic Challenge Grant to the Bowling Green State University Clinical Psychology Program, and by a Basic Grant awarded to the first author by the Bowling Green State University Faculty Research Committee. The authors are grateful to Eric Dubow, Douglas Ullman, and two anonymous reviewers for their helpful comments and criticisms on previous versions of this article. 相似文献
963.
964.
S B Chapman K A Culhane H S Levin H Harward D Mendelsohn L Ewing-Cobbs J M Fletcher D Bruce 《Brain and language》1992,43(1):42-65
This study examined narrative discourse in 20 children and adolescents at least 1 year after sustaining a head injury. Narratives were analyzed along the dimensions of language structure, information structure, and flow of information. Severity of impaired consciousness was associated with a significant reduction in the amount of language and information. The most important finding which emerged was the disruption in information structure. This pattern confirms the impression of disorganized discourse in severely injured children. Explanations for the disruption in information structure are explored in terms of the role of vocabulary, memory, and localization of lesion according to magnetic resonance imaging. In view of recent evidence that frontal lobe damage is associated with discourse formulation deficits in adults and is the most common site of focal lesion in closed head injury, we examined discourse patterns in individual patients with frontal lobe lesions. Preliminary data from our single-case studies suggest discourse patterns similar to those reported for adults with frontal lobe injuries. 相似文献
965.
Caryn L. Carlson Ph.D. William E. Pelham Jr. Richard Milich Joanne Dixon 《Journal of abnormal child psychology》1992,20(2):213-232
Twenty-four boys with attention deficit-hyperactivity disorder (ADHD) participating in an intensive summer treatment program each received b.i.d. placebo and two doses of methylphenidate (MPH, 0.3 mg/kg and 0.6 mg/kg) crossed with two classroom settings: a behavior modification classroom including a token economy system, time out and daily home report card, and a regular classroom setting not using these procedures. Dependent variables included classroom observations of on-task and disruptive behavior, academic work completion and accuracy, and daily self-ratings of performance. Both MPH and behavior modification alone significantly improved children's classroom behavior, but only MPH improved children's academic productivity and accuracy. Singly, behavior therapy and 0.3 mg/kg PMH produced roughly equivalent improvements in classroom behavior. Further, the combination of behavior therapy and 0.3 mg/kg MPH resulted in maximal behavioral improvements, which were nearly identical to those obtained with 0.6 mg/kg MPH alone.The authors gratefully acknowledge the assistance of Patricia Donovan, Michelle Berry, Mary Ingram, Patricia Wells, Beth Gnagy, Karen Greenslade, Mary Hamilton, and the entire staff of the Western Psychiatric Institute and Clinic ADHD Summer Treatment Program. 相似文献
966.
967.
A multivariate hierarchical model of specific cognitive abilities was fitted to data from 7-year-old adopted and nonadopted sibling pairs in the Colorado Adoption Project in order to assess differential genetic influence on specific mental abilities. Model fitting results and Schmid-Leiman (Schmid & Leiman, 1957) transformations reveal significant heritable variation for verbal, spatial, and memory factors independent of general cognitive ability for the eight ability tests examined. In contrast, environmental influences are primarily measure-specific. The results suggest genetic effects in middle childhood that differentially influence mental ability scores. 相似文献
968.
PATRICIA M. BERLINER 《Counseling and values》1992,37(1):2-14
A feminist psychospiritual model of therapy that can be used in working with clients who value the spiritual dimension in their lives is offered. The history, philosophy, and work of Women for a New World, a multidisciplinary team of women representing the areas of psychology, religious education, and the arts is presented. Using examples drawn from the developmental history of our retreat-workshop paradigm and from some of our programs, including a weekend retreat for women and a day of reflection for persons affected by AIDS (including family and friends of those with AIDS), the metaphor of therapy as soul healing is developed. 相似文献
969.
MARK J. MILLER 《Counseling and values》1992,37(1):25-31
Surprisingly little has been written in the counseling journals on the topic of lying: that is, why some clients consciously choose to be either dishonest with their counselors or deliberately hold back (i.e., keep secrets) important information from their counselors. This article discusses the dynamics of lying and offers suggestions to counselors on how to work with clients who lie. 相似文献
970.