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   18811篇
  免费   879篇
  国内免费   15篇
  2020年   266篇
  2019年   283篇
  2018年   402篇
  2017年   417篇
  2016年   425篇
  2015年   327篇
  2014年   350篇
  2013年   1546篇
  2012年   632篇
  2011年   719篇
  2010年   417篇
  2009年   400篇
  2008年   533篇
  2007年   509篇
  2006年   449篇
  2005年   388篇
  2004年   394篇
  2003年   374篇
  2002年   389篇
  2001年   732篇
  2000年   717篇
  1999年   495篇
  1998年   217篇
  1997年   200篇
  1996年   171篇
  1995年   163篇
  1993年   168篇
  1992年   385篇
  1991年   354篇
  1990年   369篇
  1989年   355篇
  1988年   346篇
  1987年   314篇
  1986年   332篇
  1985年   326篇
  1984年   253篇
  1983年   233篇
  1981年   158篇
  1979年   207篇
  1978年   185篇
  1975年   199篇
  1974年   257篇
  1973年   216篇
  1972年   215篇
  1971年   171篇
  1970年   156篇
  1969年   203篇
  1968年   209篇
  1967年   169篇
  1966年   186篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
921.
A battery of measures was used to assess conflict between mothers and young adolescents (females and males, 11 to 15 years of age). Two groups of families, one composed of a distressed clinical sample (N = 38), the other a nondistressed normative sample (N = 40), participated. The assessment battery included retrospective judgments, frequency estimates, self-monitored home recording, and tape-recorded discussion of a home problem. Content of assessment measures tapped aspects of parental control, decisionmaking, self-reported interaction behavior, arguments, interaction behavior rated by independent “blind” observers, frequency and anger-intensity of specific problematic issues, and perceptions of positive and negative behaviors of the other family member. Based on univariate analyses, 21 of the 26 defined variables discriminated significantly in the predicted direction. Maternal and adolescent reports of behavior and independent ratings of tape-recorded interaction emerged as strong and consistent discriminators. Stepwise multivariate discriminant analysis provided successful classification of 100% of the families based on the inclusion of nine variables. In a cross-validation sample, 84% of the families were correctly classified. Implications for systematic outcome research as well as clinical application are discussed.  相似文献   
922.
Simultaneous observational recordings were made in vivo, via an observation mirror, and via closed circuit television. Three of nine observers had extensive experience recording behavior in vivo; three had extensive experience recording behavior via mirror; and three had extensive experience recording via television. Observers recorded nine categories of disruptive behavior for children in a special class setting. Frequencies of behavior recorded in vivo, via mirror, and via television differed significantly for only one category, vocalization. There were no significant main effects or interactions involving the observers' previous experience. Occurrence reliability coefficients computed within and between media demonstrated the similarity of observer agreement in all three media. Data collection procedures using an observational mirror or closed circuit television appear to be reasonable alternatives to in vivo observation in circumstances similar to those in the present study.  相似文献   
923.
A comprehensive validation study was conducted of the Program for Academic Survival Skills (PASS), a consultant-based, teacher-mediated program for student classroom behavior. The study addressed questions related to: (a) brief consultant training, (b) subsequent teacher training by consultants using PASS manuals, (c) contrasts between PASS experimental teachers and students and equivalent controls on measures of teacher management skills, student classroom behavior, teacher ratings of student problem behaviors, and academic achievement, (d) reported satisfaction of participants, and (e) replication of effects across two separate school sites. Results indicated that in both sites significant effects were noted in favor of the PASS experimental group for (a) teacher approval, (b) student appropriate classroom behavior, and (c) four categories of student inappropriate behavior. Program satisfaction ratings of students, teachers, and consultants were uniformly positive, and continued use of the program was reported a year later. Discussion focused upon issues of cost-effectiveness, differential site effects, and the relationship between appropriate classroom behavior and academic achievement.  相似文献   
924.
Remarriage is analyzed from the perspective of family boundaries and roles. The nuclear and remarriage family models are compared, and the process that begins with the formation of the first-marriage nuclear family and ends with the formation of a second-marriage family is conceptualized in terms of changing family boundaries and roles. Discussions with remarriage group members provide concrete illustrations of this process and suggest solutions to some of the problems confronting remarriage family members.  相似文献   
925.
926.
The use of the operant conditioning paradigm, as it has been applied to infant social, vocal behavior, reflects a failure to take into account the social nature of human infants over and above the rigid theoretical rationale of the paradigm. It is argued that: (1) the baseline procedure used in operant conditioning studies is methodologically and conceptually invalid; (2) the reinforcing stimulus used in social conditioning studies elicits the very response that it is assigned to reinforce; and (3) the effect of the response-reinforcer relationship is not the reinforcement (strengthening) of vocal response rate.  相似文献   
927.
Three studies were conducted to test whether imagery accounts for the effects of empathy on attributions, that is, whether attributers construct and scan a mental image of social scenarios the same way that actual participants scan a real environment. According to this interpretation, attributers “see” the world as the participant does and make vicarious attributions. An alternative interpretation holds that subjects base vicarious attributions on recreating the motivations and affect of the actor, so that imaging is irrelevant to empathy and attributions. In the first study, subjects who imagined a story from the perspective of a particular character later showed differential recall of story details as a function of role, but not differential attributions. In Experiment 2, role-taking subjects showed clear effects of imaged perspective on recall for story details, but no effects on attributions of causality for an accident. Further, recall and attribution were uncorrelated. In the last study, empathy and imagery role-taking instructions produced independent effects: imagers showed pronounced perspective-relevant recall and empathizers did not. Neither showed unambiguous vicarious attributions. Recall and attribution were again uncorrelated. These studies suggest that the imagery explanation of empathy effects is untenable, and imply that the recall of perspective-relevant details is unlikely to mediate attributions of causality in imaginary scenarios.  相似文献   
928.
Facial expressions and vocal cues (filtered speech) of honest and deceptive messages were examined in posed and spontaneous situations. The question of interest was the degree to which nonverbal cues transmit information about deception. Results indicated that (a) for both the facial and vocal channels, posing (as compared to spontaneous behavior) produced a higher level of communication accuracy; (b) facial expressions of deceptive (as compared to honest) messages were rated as less pleasant, while vocal expressions of deception were rated as less honest, less assertive, and less dominant, particularly in the posed condition; (c) the sender's ability to convey honesty was negatively correlated with his/her ability to convey deception, suggesting the existence of a demeanor bias—individual senders tend to appear and sound consistently honest (or dishonest) regardless of whether they deliver an honest or a deceptive message; (d) in the posing condition, the sender's abilities to convey honesty/deception via facial and vocal cues were positively and significantly correlated, whereas in the spontaneous condition they were not; and (e) senders whose full (unfiltered) speech indicated more involvement with their responses were judged as more honest from both their vocal (filtered speech) and facial cues, in both the honest and deceptive conditions.  相似文献   
929.
Sex differences in psychomotor reminiscence were examined as a function of the length of the rest period. Five groups of Caucasian subjects, each group consisting of 12 males and 12 females, practiced continuously for 3 min on a mirror-tracking task, then rested for 0,1, 2, 4, or 8 min before resuming continuous practice. Reminiscence in both sexes increased as negatively accelerated functions of the amount of rest. The asymptotic level of reminiscence was higher for females than for males, but the quadratic slopes of the two functions were essentially alike. Analyses of prerest trial gains supported a conclusion that females reminisced more because they accumulated more reactive inhibition prior to rest.  相似文献   
930.
On the basis of the examination of patients with endogenic psychosis, indications were obtained that there are forms that mainly develop on a hereditary basis, and forms determined by psychosocial causes. In unsystematic schizophrenia the chief factors are hereditary, above all in periodic catatonia. On the other hand, there are a few indications of a hereditary genesis in systematic schizophrenia although it is just these forms that are distinguished by the severity of their course. By studying twins, cases of schizophrenia in infancy, and the circumstances of brothers and sisters, strong indications of psychosocial causes of systematic schizophrenia were found. Lack of contacts in the course of development appears to the determing factor. In motility psychosis, one of the cycloid psychoses, indications were found that excessive encouragement by other children can be a cause of overstrain and thus may be detrimental. The conclusions drawn are based on concrete findings obtained in a total of 1,114 cases and are for the most part statistically significant.  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