首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1761篇
  免费   76篇
  1837篇
  2023年   8篇
  2020年   33篇
  2019年   27篇
  2018年   31篇
  2017年   35篇
  2016年   51篇
  2015年   45篇
  2014年   30篇
  2013年   204篇
  2012年   61篇
  2011年   78篇
  2010年   34篇
  2009年   45篇
  2008年   56篇
  2007年   61篇
  2006年   72篇
  2005年   53篇
  2004年   55篇
  2003年   53篇
  2002年   63篇
  2001年   31篇
  2000年   24篇
  1999年   29篇
  1998年   31篇
  1997年   23篇
  1996年   32篇
  1995年   28篇
  1994年   23篇
  1993年   29篇
  1992年   16篇
  1991年   31篇
  1990年   24篇
  1989年   23篇
  1988年   29篇
  1987年   23篇
  1986年   21篇
  1985年   31篇
  1984年   26篇
  1983年   23篇
  1982年   25篇
  1981年   28篇
  1980年   17篇
  1979年   17篇
  1978年   22篇
  1977年   25篇
  1976年   16篇
  1975年   11篇
  1974年   9篇
  1973年   8篇
  1972年   11篇
排序方式: 共有1837条查询结果,搜索用时 6 毫秒
981.
Older adults need to maintain strong decision‐making capabilities as they age. However, we know little about how age‐related physical and psychological changes affect older adults' judgment and decision processes. This paper reports the results of research comparing older versus younger adults' performance on evaluation and choice tasks about health‐plan options. In particular, comprehension and consistency in judgments (across separate versus joint evaluation contexts) were examined. Results indicated that increasing age was related to greater comprehension errors and inconsistent preferences, even when covariates (education, income, gender, self‐perceived skill and health, decision style, and attitude toward delegation) were taken into account. Discussion of the results emphasizes difficulties in interpreting the meaning of age differences in performance on decision tasks and the need for research that ascertains the seriousness of the consequences of age differences in real‐life tasks. The implications for providing decision‐aiding interventions for older adults are highlighted. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
982.
983.
984.
985.
Males typically surpass females in spatial performance, an outcome that may be linked to testosterone and estrogen. The authors (a) review physiological mechanisms, developmental periods, and past empirical work relevant to sex steroids' effects on human spatial performance and (b) report an experimental study of the role of actively circulating sex steroids in adolescents being treated for delayed puberty (N = 55; mean age = 13.70 years). Sex steroids (simulating early, middle, and late puberty) and placebos were given alternately over 21 months and spatial tests were given every 3 months. Spatial performance showed traditional sex differences but did not vary with levels of actively circulating sex steroids.  相似文献   
986.
Harris V  Onslow M  Packman A  Harrison E  Menzies R 《Journal of Fluency Disorders》2002,27(3):203-13; quiz 213-4, III
Preliminary Phase I and II trials for the Lidcombe Program of early stuttering intervention have found favorable outcomes and that the treatment is safe. Although speech-language pathologists (SLPs) often need to intervene with pre-schoolers' early stuttering, many of these children will recover at some time in the future without such intervention. Consequently, they need to know whether the Lidcombe Program's effect on stuttering is greater than that of natural recovery. Participants were 23 pre-school children who were randomly assigned to either a control group or a treatment group that received the Lidcombe Program for 12 weeks. A repeated measures ANOVA showed no main effect on stuttering for the group (control/treatment), a significant main effect for the measurement occasion (at the start and at the end of the treatment period), and a significant interaction between group and measurement occasion. Stuttering in the treatment group reduced twice as much as in the control group. These results are interpreted to mean that the introduction of the Lidcombe Program has a positive impact on stuttering rate, which exceeds that attributable to natural recovery.  相似文献   
987.
988.
Several randomized controlled trials have indicated that cognitive behaviour therapy is an effective treatment for chronic fatigue syndrome. In 1 of these studies 13 therapists applied cognitive behaviour therapy for chronic fatigue syndrome in 83 chronic fatigue syndrome patients. In the present study therapists' adherence and perceptions of the manual are studied. Following completion of the study the therapists were asked to complete a questionnaire. Audiotaped sessions were conducted to verify the therapists' adherence. Analyses of the audiotapes showed that in 87% of the sessions this appeared to be the case. The questionnaire revealed that the therapists found it more difficult to treat patients with chronic fatigue syndrome than to treat patients with psychological or other physical problems. Treatment aspects posing the most problems were integrating individual problems into the standardized treatment, dealing with the patients' lack of confidence in the treatment and handling insufficient motivation.  相似文献   
989.
990.
The intergenerational transmission of risk factors for problem behaviors was examined across three generations. Two hundred fifty-four 2-year-old toddlers, one or two of their parents, and one grandmother of each toddler were studied. Grandmothers and parents were individually interviewed. Data were analyzed for the male and female toddlers combined. Correlations and hierarchical multiple regression analyses were performed. Findings indicate that the grandmother–parent relationship, parental personality attributes, marital harmony, and drug use and the parent–toddler relationship, predict the toddlers' behavior. The investigation provides evidence for a longitudinal, intergenerational process whereby the grandmother–parent relationship and the parents' personality and behavioral attributes are transmitted across generations through their association with the parent–child relationship.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号