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   46204篇
  免费   1908篇
  国内免费   32篇
  2020年   498篇
  2019年   627篇
  2018年   875篇
  2017年   927篇
  2016年   894篇
  2015年   672篇
  2014年   762篇
  2013年   3588篇
  2012年   1367篇
  2011年   1536篇
  2010年   964篇
  2009年   925篇
  2008年   1287篇
  2007年   1210篇
  2006年   1107篇
  2005年   940篇
  2004年   884篇
  2003年   911篇
  2002年   874篇
  2001年   1738篇
  2000年   1697篇
  1999年   1196篇
  1998年   525篇
  1997年   452篇
  1996年   419篇
  1992年   1004篇
  1991年   959篇
  1990年   941篇
  1989年   891篇
  1988年   838篇
  1987年   809篇
  1986年   800篇
  1985年   855篇
  1984年   673篇
  1983年   547篇
  1981年   413篇
  1979年   625篇
  1978年   481篇
  1977年   443篇
  1976年   418篇
  1975年   575篇
  1974年   633篇
  1973年   645篇
  1972年   565篇
  1971年   469篇
  1970年   438篇
  1969年   505篇
  1968年   564篇
  1967年   478篇
  1966年   554篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
941.
Social reciprocity behavior was compared for handicapped and nonhandicapped preschool children when they were in play situations with both handicapped and nonhandicapped partners. In a counterbalanced design, handicapped and nonhandicapped children were paired with both handicapped and nonhandicapped play partners, and the social initiation and response sequences of the dyads were observed. Types of initiation observed were friendly statements, friendly questions, mildly negative advances, and demanding statements. Friendly, ignoring, and negative responses were observed to these initiations. Handicapped and nonhandicapped children did not differ on overall number of initiations. However, they did differ on the types of initiation they made. Handicapped children asked fewer friendly questions and engaged in more demanding initiations than expected. Both groups made more initiations when paired with handicapped partners than when paired with nonhandicapped partners, but the groups did not differ on the types of initiation made to handicapped and nonhandicapped partners. The handicapped children made more ignoring and negative responses to friendly initiations than the nonhandicapped children. Behaving similarly, both groups tended to respond negatively to negative and demanding initiations.  相似文献   
942.
943.
944.
Distinctions are drawn between different predictors of an individual's memory performance, with emphasis on the notion of privileged access to idiosyncratic knowledge. Research is reported in which undergraduates attempted to recall the answers to general-information questions, then made feeling-of-knowing judgments on nonrecalled items, and subsequently had a criterion test (relearning, perceptual identification, or one of two versions of recognition). For predicting an individual's criterion performance, the individual's own feeling-of-knowing predictions were intermediate between two kinds of normative predictions: The individual's feeling-of-knowing predictions were more accurate than predictions derived from normative feeling-of-knowing ratings but were less accurate than predictions derived from base-rate item difficulty (normative probabilities of correct recall). Subsidiary analyses showed that factors other than unreliability are responsible for the partial inaccuracy of the individual's feeling of knowing. Ramifications are discussed for possible ways to improve the accuracy of an individual's feeling-of-knowing predictions.  相似文献   
945.
Process analyses revealed that interpretations and exploration of feelings were helpful across two cases. Other interventions were helpful for one case but not the other.  相似文献   
946.
Numerous previous studies have shown that partial-interval sampling in direct observation systematically overestimates duration and underestimates frequency. Whole-interval sampling systematically underestimates both duration and frequency. This paper presents a post hoc method through which the systematic errors in duration estimates in partial-interval sampling and whole-interval sampling can be minimized.  相似文献   
947.
Psychopathology and symptom patterns were studied in 60 former prisoners-of-war (POWs) by administering standardized tests including the Minnesota Multiphasic Personality Inventory (MMPI), an adjustment problem checklist, and a structured clinical interview. Most POWs showed marked psychological impairment, but modal profile analysis identified two prototypic MMPI patterns, which differed in pervasiveness and type of psychopathology. Profile subtypes were defined by unique clusters of clinical symptoms and differed in confinement stress severity. The typology of symptoms argues against a homogeneous conceptualization of stress-induced disorders and suggests the need for definition of the severity and subtype of stress phenomena and individual difference factors in responding to trauma.  相似文献   
948.
949.
Dating experiences, especially the type or stage of dating, have consistently been found to be related to premarital sexual behavior. Findings regarding the age at 1st date and sexual behavior have been less consistent. This paper examined the age at which dating began and the type of dating relationship as correlates of premarital sexual attitudes and behavior among mid-teen adolescents. The analyses were based on a sample of high school students (n=836), most of whom were between the ages of 15 and 18 when the surveys were conducted. Early dating, especially early steady dating, was related to permissive attitudes and to premarital sexual experience among both males and females. The relationship between early dating and intercourse experience was particulary strong among Mormons, a religious group which has institutionalized age 16 as the legitimate age to begin dating.  相似文献   
950.
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