全文获取类型
收费全文 | 103205篇 |
免费 | 4244篇 |
国内免费 | 39篇 |
出版年
2020年 | 1035篇 |
2019年 | 1255篇 |
2018年 | 1753篇 |
2017年 | 1768篇 |
2016年 | 1923篇 |
2015年 | 1354篇 |
2014年 | 1646篇 |
2013年 | 7584篇 |
2012年 | 3029篇 |
2011年 | 3216篇 |
2010年 | 1996篇 |
2009年 | 1978篇 |
2008年 | 2852篇 |
2007年 | 2846篇 |
2006年 | 2592篇 |
2005年 | 2329篇 |
2004年 | 2193篇 |
2003年 | 2066篇 |
2002年 | 2129篇 |
2001年 | 3215篇 |
2000年 | 3148篇 |
1999年 | 2397篇 |
1998年 | 1177篇 |
1997年 | 1042篇 |
1996年 | 1022篇 |
1992年 | 2072篇 |
1991年 | 1947篇 |
1990年 | 1961篇 |
1989年 | 1788篇 |
1988年 | 1732篇 |
1987年 | 1678篇 |
1986年 | 1764篇 |
1985年 | 1867篇 |
1984年 | 1550篇 |
1983年 | 1403篇 |
1982年 | 1019篇 |
1981年 | 973篇 |
1979年 | 1619篇 |
1978年 | 1167篇 |
1977年 | 1001篇 |
1975年 | 1383篇 |
1974年 | 1560篇 |
1973年 | 1654篇 |
1972年 | 1402篇 |
1971年 | 1293篇 |
1970年 | 1192篇 |
1969年 | 1211篇 |
1968年 | 1585篇 |
1967年 | 1429篇 |
1966年 | 1289篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
941.
942.
Paul R. Rosenbaum 《Psychometrika》1989,54(4):625-633
Established results on latent variable models are applied to the study of the validity of a psychological test. When the test predicts a criterion by measuring a unidimensional latent construct, not only must the total score predict the criterion, but the joint distribution of criterion scores and item responses must exhibit a certain pattern. The presence of this population pattern may be tested with sample data using the stratified Wilcoxon rank sum test. Often, criterion information is available only for selected examinees, for instance, those who are admitted or hired. Three cases are discussed: (i) selection at random, (ii) selection based on the current test, and (iii) selection based on other measures of the latent construct. Discriminant validity is also discussed.This work was supported in part by Grant SES-87-01890 from the Measurement Methods and Data Improvement Program of the U.S. National Science Foundation. 相似文献
943.
This field study used the Job Feedback Survey (Herold & Parsons, 1985) and performance data gathered from multiple sources to examine the relationship between the perceived organizational feedback environment and performance. Regression analyses indicated that, while holding the other feedback variables constant, feedback from supervisory and organizational sources was related to reported job performance while feedback from peers and self was not. Most of the unique variance in performance explained by feedback was also accounted for by feedback from organizational and supervisory sources. Negative expressions from organizational/supervisory sources (e.g., the supervisor expressing anger, the company communicating dissatisfaction with poor performance) were related to lower performance, and positive job changes initiated by these sources (e.g., increasing responsibility, assignment to special jobs) were related to higher performance. Higher performers did not receive more feedback than lower performers but did receive more total positive feedback. Supplemental issues, possible explanations, and implications of the findings are discussed. 相似文献
944.
This study examined the relations among physical fitness, body image, and locus of control. The Hall-Physical Fitness Test Profile, the Winstead and Cash Body Self-relations Questionnaire (BSRQ) and the Nowicki-Strickland Locus of Control Scale were administered to 243 freshmen. Women were significantly more positive about their physical appearance than men. Men were more positive about their physical fitness than women. Men were more physically fit than women. Men and women scoring in the internal direction viewed the physical fitness domain of their body image positively. Unlike men, internally oriented women had more positive perceptions of the health aspect of their body image. Physically fit men and women had positive attitudes toward the physical fitness component of their body image. Physically fit men differed from physically fit women in that men were more internal and held more positive attitudes toward the physical health dimension of their body images. 相似文献
945.
This study investigated the relationship between speech perception and speech production. An experimental technique called motor-motor adaptation was devised. Subjects produced a speech token repeatedly (20 to 40 repetitions), then produced a second token one time. These tokens all contained stop consonants and were subsequently analyzed for voice onset time. The results paralleled previous findings using the experimental procedure, perceptuomotor adaptation. The present study supports the notion of a perception-production link. 相似文献
946.
The responses toward denatonium saccharide and quinine by three rodent species differ from those exhibited by humans. This study measured the relative aversiveness of these two compounds in grasshopper mice (Onychomys leucogaster) to determine if this species responded similarly to or differently from these other rodents. In a choice test, the mice clearly preferred quinine over denatonium saccharide at concentrations of 1/10,000 and 1/50,000, but only marginally preferred quinine at a concentration of 1/1000. When denatonium or quinine was paired with toxicosis, both suppressed drinking at concentrations from 1/10,000 to 1/50,000, but only denatonium suppressed drinking at 1/100,000. Neither compound suppressed drinking at 1 part in million. Grasshopper mice perceived denatonium saccharide as more aversive than quinine in both experiments. Such a response resembled the behavior of humans more than that of the other three rodents previously tested. 相似文献
947.
948.
This study examined job bias associated with business students' role-playing as sales managers who assigned trainees to sales territories. Personal characteristics of being extremely overweight and being a heavy smoker were studied. Research participants were given a personnel record (training record) of a sales trainee and asked to make a sales territory assignment decision; three vacant territories were also described. The participants were told to assign the trainee to one of the territories or to indicate a preference to not have the recruit assigned to any territory within the role-playing manager's region. Analysis indicates that a sales recruit described as extremely overweight was less likely to be assigned to an important or desirable sales territory and more likely to be assigned to an undesirable territory or not selected at all for an assignment within a sales region. Those described as heavy smokers were similarly treated but to a lesser degree. Overweight saleswomen were discriminated against more than overweight salesmen. 相似文献
949.
The Psychological Record - Treatment with 8.0 mg/kg fluprazine hydrochloride had no effect on the acquisition of a step-down avoidance response but retarded its extinction. The drug also impaired... 相似文献
950.
J B Murray 《Psychological reports》1989,64(2):627-644
Alcoholism among women often has been treated using a model based on research with alcoholic men. Women react differently to alcohol than men both physiologically and psychologically and their drinking patterns are different from men's. Treatment facilities for alcoholism have not been as available for women as for men and treatment must be individualized for the differences between men and women problem drinkers and for the differences among alcoholic women. 相似文献