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   10283篇
  免费   708篇
  国内免费   164篇
  11155篇
  2024年   58篇
  2023年   97篇
  2022年   97篇
  2021年   113篇
  2020年   216篇
  2019年   233篇
  2018年   214篇
  2017年   229篇
  2016年   203篇
  2015年   138篇
  2014年   197篇
  2013年   526篇
  2012年   187篇
  2011年   204篇
  2010年   191篇
  2009年   212篇
  2008年   267篇
  2007年   353篇
  2006年   336篇
  2005年   272篇
  2004年   269篇
  2003年   208篇
  2002年   161篇
  2001年   105篇
  2000年   99篇
  1999年   67篇
  1998年   45篇
  1997年   42篇
  1996年   55篇
  1995年   32篇
  1994年   22篇
  1993年   30篇
  1992年   27篇
  1991年   16篇
  1990年   15篇
  1989年   22篇
  1987年   9篇
  1985年   453篇
  1984年   520篇
  1983年   426篇
  1982年   524篇
  1981年   499篇
  1980年   519篇
  1979年   464篇
  1978年   503篇
  1977年   382篇
  1976年   377篇
  1975年   316篇
  1974年   318篇
  1973年   267篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
941.
Masculine and feminine subgroups of males and females were selected from samples of high school and college students on the basis of composite scores from several M—F scales. They were compared on intelligence as measured by a verbal test, Terman's Concept Mastery Test, and a nonverbal test, D-48. Results did not support previous findings of sex differences in intelligence but showed that masculine subgroups of both sexes scored higher of the nonverbal test.  相似文献   
942.
Internal evidence of cultural bias, in terms of various types of item analysis, was sought in the Wonderlic Personnel Test results in large, representative samples of Whites and Blacks totaling some 1,500 subjects. Essentially, the lack of any appreciable Race × Items interaction and the high interracial similarity in rank order of item difficulties lead to the conclusion that the Wonderlic shows very little evidence of cultural bias with respect to the present samples which, however, differ appreciably in mean scores. The items which account for the most variance within each racial group are, by and large, the same items that show the largest interracial discrimination.  相似文献   
943.
944.
945.
946.
Three generalization procedures were used to investigate inhibitory stimulus control following discrimination learning with few errors. Three groups of pigeons acquired a discrimination between a green stimulus (the positive stimulus) and a vertical or horizontal line (the negative stimulus) through differential autoshaping followed by multiple schedule presentation of the two stimuli with gradually increasing stimulus durations. Genereralization testing was along a line-tilt continuum. For one group, the test involved a resistance-to-reinforcement procedure in which responses to all line tilts were reinforced on a variable-interval schedule. For a second group, also tested with the resistance-to-reinforcement procedure, the lines were superimposed on the green field that formerly served as the positive stimulus. A third group was tested in extinction with the combined stimuli. Control groups had no discrimination training but responding to green was nondifferentially reinforced. The control subjects responded more to all line tilts during testing than did the comparable experimental subjects, indicating that the negative stimulus had become an inhibitory stimulus. Both resistance-to-reinforcement groups revealed inhibitory gradients around the negative stimulus, but the gradient for the extinction group was relatively flat. These data are consistent with others that modify Terrace's early conclusion concerning the failure of inhibition to develop during errorless training.  相似文献   
947.
A concurrent verbal task was superimposed upon the performance of a practiced bimanual motor skill by right-handed Ss. Addition of the verbal task did not increase the total number of errors; however, a significant interaction between hands and conditions was observed. The right hand made significantly more errors under the verbal condition, while the left hand made non-significantly fewer errors under that condition. These findings were interpreted as supporting an attentional model rather than a model which proposes that addition of the verbal task causes control of the right hand to shift to the non-verbal right hemisphere.  相似文献   
948.
On each of 300 trials E's confederate (C) verbalized which of two stimuli would occur; then S made a prediction. Following each presentation, S and C pulled a trigger to identify the stimulus. Two latencies were measured: the interval between C's and S's prediction (prediction time), and the interval between stimulus presentation and S's identification response (choice RT). Prediction times were significantly shorter when S's prediction agreed rather than disagreed with C's prediction, when S's preceding prediction was correct rather than incorrect, and when S was female rather than male. Choice RT was influenced by distributions of C's stimulus predictions and C's prediction outcomes in directions supporting an expectancy model.  相似文献   
949.
This paper examined differences in the degree to which fifteen specific sources of job satisfaction were related to and predictive of the overall satisfaction of department chairmen in the six model environments proposed by Holland (1973). The fifteen specific sources of job satisfaction were regressed on overall satisfaction, separately for chairmen in each environment, through the use of incremental stepwise multiple regression procedures. The results indicated that the overall satisfaction of chairmen in these six environments was differentially related to unique weightings and combinations of the fifteen predictor variables. It was concluded that environments, composed of essentially similar groups of people in different organizations, serve as job satisfaction reinforcer systems in a manner similar to organizations as illustrated by Dawis.  相似文献   
950.
Recent studies have investigated the personality traits of persons in Holland's six occupational categories. In the present study the generalizability of Holland's characterizations of adults within the occupational categories was investigated in a group of 402 Mexican-Americans. Occupational Scale scores on the Kuder Occupational Interest Survey were used to classify subjects into Holland's occupational types. Multiple discriminant analysis of groups' Guilford-Zimmerman Temperament Survey scale scores resulted in significant overall groups differentiation and two significant discriminant functions for males but no significant results for females. The personality characteristics of the male groups provide strong support for the generalizability of Holland's characterizations to Mexican-American males.  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