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   5312篇
  免费   75篇
  5387篇
  2020年   89篇
  2019年   87篇
  2018年   167篇
  2017年   133篇
  2016年   133篇
  2015年   83篇
  2014年   108篇
  2013年   484篇
  2012年   183篇
  2011年   169篇
  2010年   111篇
  2009年   135篇
  2008年   141篇
  2007年   144篇
  2006年   130篇
  2005年   117篇
  2004年   122篇
  2003年   103篇
  2002年   90篇
  2001年   139篇
  2000年   110篇
  1999年   91篇
  1998年   53篇
  1997年   52篇
  1996年   57篇
  1993年   60篇
  1992年   72篇
  1991年   83篇
  1990年   68篇
  1989年   65篇
  1988年   73篇
  1987年   73篇
  1986年   52篇
  1985年   77篇
  1984年   76篇
  1983年   53篇
  1982年   59篇
  1981年   50篇
  1980年   47篇
  1979年   60篇
  1978年   65篇
  1977年   53篇
  1976年   57篇
  1975年   67篇
  1974年   67篇
  1973年   61篇
  1972年   55篇
  1971年   54篇
  1968年   51篇
  1967年   64篇
排序方式: 共有5387条查询结果,搜索用时 0 毫秒
871.
Three experiments were conducted to determine if a representation of the movement environment is functional in the organization and control of limb movements, when direct visual contact with the environment is prevented. In Experiment 1, a visual rearrangement procedure was employed to show that a representation of the environment that provides inaccurate information about the spatial location of a target can disrupt manual target aiming. In Experiment 2, we demonstrated that spatial information about the position of a target can be destroyed by a visual pattern mask, supporting our claim that the representation is visual. A target-cuing procedure was used in Experiment 3 to show that representation of target position can be useful for premovement organization in a targetaiming task. Together our findings suggest that a short-lived visual representation of the movement environment may serve a useful role in the organization and control of limb movements.  相似文献   
872.
A study was conducted of one year's referrals to a Juvenile Court Clinic, comparing the ratings of psychiatrists and social workers regarding a child's prognosis for psychotherapy with ratings from the Rorschach Prognostic Rating Scale (RPRS). The RPRS proved to be highly reliable and to correlate significantly with psychiatric ratings. Intelligence did not appear to be a confounding factor, and no difference was suggested in RPRS prognosis for Caucasian or Negro subjects.  相似文献   
873.
Clinard, Marshall B. (Ed.), Anomie and Deviant Behavior: A Discussion and Critique. New York, Toronto, London: Collier-Macmillan, Ltd., 1964, Free Press of Glencoe, xii, pp. 324. Reviewed by Leon J. Whitsell  相似文献   
874.
Existing measures of approval motivation attempt to assess this dimension of personality indirectly through evaluation of socially desirable response tendencies. The Martin-Larsen Approval Motivation (MLAM) Scale takes a more direct approach by focusing on individual differences in need for social approval. Since the original version of the MLAM scale is subject to acquiescence response bias, fully balanced and partially balanced scales were created to minimize this response style. Results indicated that the revised measures arc equivalent to the original version and that balancing affects the magnitude but not the pattern of correlates with other scales. Comparisons with the Marlowe-Crowne Social Desirability (MCSD) Scale revealed a divergent pattern of correlates with several measures of personality suggesting a basic difference between the MLAM and MCSD in their conceptualization of approval motivation.  相似文献   
875.
Seventy-two five- to seven-year-old boys were exposed to televised adult models and were then administered tests of resistance to deviation (moral behavior), moral choice, and moral judgment level. Boys exposed to a model who said he would resist deviating from a prohibition and who supported his statement with a morally realistic justification were subsequently more likely to use that model's statements to guide their own moral behavior and moral choice than were boys exposed to a model advocating resistance to deviation with a morally autonomous justification. Realistic models expressing a deviating moral choice led to more deviating moral choices in observers than did autonomous deviating models. The moral judgment levels of the boys were not significantly affected by the models. The boys' moral behavior was predictive of their moral choice while moral judgment level was not significantly related to the other two indices of morality.  相似文献   
876.
877.
In psychological measurement, two interpretations of measurement systems have been developed: the reflective interpretation, in which the measured attribute is conceptualized as the common cause of the observables, and the formative interpretation, in which the measured attribute is seen as the common effect of the observables. We advocate a third interpretation, in which attributes are conceptualized as systems of causally coupled (observable) variables. In such a view, a construct like ’depression’ is not seen as a latent variable that underlies symptoms like ’lack of sleep’ or ’fatigue’, and neither as a composite constructed out of these symptoms, but as a system of causal relations between the symptoms themselves (e.g., lack of sleep → fatigue, etc.). We discuss methodological strategies to investigate such systems as well as theoretical consequences that bear on the question in which sense such a construct could be interpreted as real.  相似文献   
878.
Few studies have examined rates of mental health problems among special duty military personnel, who often have frequent deployments and high exposure to operational stressors and trauma. The current study examined the severity and rates of positive screening for posttraumatic stress, depression, and insomnia among 194 U.S. Air Force pararescuemen (PJs) in the active duty (AD) and National Guard/Reserve (NG/R) components. Overall estimated rates were 11.6% for probable posttraumatic stress disorder (PTSD), 1.6% for probable depression, and 16.1% for clinical insomnia. PJs in the NG/R reported significantly more severe posttraumatic stress symptoms (F(1, 162) = 10.031, p = .002, partial η2 = .058) and were approximately twice as likely to screen positive for probable PTSD (8.5% vs. 19.1%; χ2[1] = 3.679, p = .055). No differences in the rate or severity of depression or insomnia symptoms were found. Rates of positive screens are comparable to or lower than previously published rates among military personnel.  相似文献   
879.
Psychologists have long been interested in characterizing individual differences in change over time. It is often plausible to assume that the distribution of these individual differences is continuous in nature, yet theory is seldom so specific as to designate its parametric form (e.g., normal). Semiparametric groups-based trajectory models (SPGMs) were thus developed to provide a discrete approximation for continuously distributed growth of unknown form. Previous research has demonstrated the adequacy of the approximation provided by SPGM but only under relatively narrow, theoretically optimal conditions. Under alternative conditions, which may be more common in practice (e.g., higher dimension random effects, smaller sample sizes), this study shows that approximation adequacy can suffer. Furthermore, this study also evaluates whether SPGM's discrete approximation is preferable to a parametric trajectory model that assumes normally distributed random effects when in fact the distribution is modestly nonnormal. The answer is shown to depend on distributional characteristics of both repeated measures (binary or continuous) and random effects (bimodal or skewed). Implications for practice are discussed in light of empirical examples on externalizing behavior.  相似文献   
880.
Serious illness puts us in touch with an acute sense of our own vulnerability and mortality. Loss of ego identity creates an urgent longing to find meaning within the experience of illness or impending death. Inspired by his own near-death experiences in later life, Jung wrote about the goal of the second half of life: “to be ready to die with life.” This article reflects upon three individuals’ stories illustrating how palliative care embraces the needs of the whole person and prepares individuals to participate consciously in their final journey in life. This interprofessional model of care can help individuals and their loved ones experience the highest quality of life possible and bring completion to life's relationships. These stories demonstrate a synergy between Jung's beliefs regarding the goal of the second half of life and the soul work necessary for healing, wholeness, and individuation.  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