全文获取类型
收费全文 | 73479篇 |
免费 | 3110篇 |
国内免费 | 26篇 |
出版年
2020年 | 910篇 |
2019年 | 1070篇 |
2018年 | 1556篇 |
2017年 | 1532篇 |
2016年 | 1657篇 |
2015年 | 1175篇 |
2014年 | 1436篇 |
2013年 | 6520篇 |
2012年 | 2535篇 |
2011年 | 2556篇 |
2010年 | 1538篇 |
2009年 | 1589篇 |
2008年 | 2216篇 |
2007年 | 2213篇 |
2006年 | 1992篇 |
2005年 | 1671篇 |
2004年 | 1720篇 |
2003年 | 1625篇 |
2002年 | 1528篇 |
2001年 | 2296篇 |
2000年 | 2252篇 |
1999年 | 1631篇 |
1998年 | 816篇 |
1997年 | 688篇 |
1996年 | 773篇 |
1995年 | 687篇 |
1994年 | 691篇 |
1993年 | 662篇 |
1992年 | 1334篇 |
1991年 | 1257篇 |
1990年 | 1260篇 |
1989年 | 1202篇 |
1988年 | 1148篇 |
1987年 | 1065篇 |
1986年 | 1065篇 |
1985年 | 1116篇 |
1984年 | 907篇 |
1983年 | 814篇 |
1979年 | 970篇 |
1978年 | 756篇 |
1975年 | 799篇 |
1974年 | 907篇 |
1973年 | 935篇 |
1972年 | 812篇 |
1971年 | 763篇 |
1970年 | 638篇 |
1969年 | 658篇 |
1968年 | 830篇 |
1967年 | 749篇 |
1966年 | 695篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
801.
L M Ward 《Canadian journal of psychology》1985,39(4):546-563
802.
803.
804.
Gary M. Pace Martin T. Ivancic Glynnis L. Edwards Brian A. Iwata Terry J. Page 《Journal of applied behavior analysis》1985,18(3):249-255
We evaluated a procedure for identifying potential reinforcers with profoundly retarded individuals. In Experiment 1, six persons were repeatedly exposed to 16 stimuli, and approach behaviors to each stimulus were used to identify preferred and nonpreferred stimuli. In Experiment 2, we examined the reinforcing properties of preferred and nonpreferred stimuli by delivering them contingently on the occurrence of arbitrarily selected responses. Results revealed that the preferred stimulus conditions typically produced higher rates of responding than did either the baseline or the nonpreferred stimulus conditions, suggesting that the procedure can be used to assess reinforcer value for individuals with limited behavioral repertoires. 相似文献
805.
James M. Larocco 《Journal of applied social psychology》1985,15(8):735-757
This study identifies the direct effects of objective job conditions on individual perceptions of job conditions. The assumptions that (1) group perceptions mediate the relationship between objective job conditions and individual perceptions of job conditions, and (2) group consensus enhances the relationship be-between group perceptions and individual perceptions were tested. Respondents were white, male, blue collar workers (N= 1240) in a tire and rubber manufacturing plant. Work groups (N= 156), consisting of four or more men on the same shift, in the same department, and who had the same supervisor, were identified. Objective job conditions included work group size, pay style, shift, and job technology. Group and individual perceptions of amount of work-load, role conflict, responsibility pressure, and intrinsic rewards were measured. The findings indicated that objective job conditions have important effects on individual perceptions of stressful and rewarding job conditions. Smaller work groups, and jobs that pay on an hourly rather than a piece-work basis, allow for some control over the pace of work, and allow for interaction among fellow workers resulted in higher levels of intrinsic rewards and lower levels of workload, role conflict, and responsibility pressures. An intriguing pattern appeared where, in perceptions involving interpersonal relations, work group influence was relatively more important than objective job conditions. When assessing task oriented aspects of work, objective job conditions were more important than group perceptions. 相似文献
806.
The interrelatedness of attitudes toward homosexuals, Blacks, women, and old people was studied, as well as attitude differences on demographic variables. Three hundred and nine White undergraduates responded to the Homosexual Attitude Scale, The Attitudes Toward Women Scale, Multifactor Racial Attitude Inventory, and two attitudes toward old people scales. Nine of the ten possible intercorrelations were significant beyond the .01 levels. Prejudice toward quite distinct outgroups appears to be a generalized attitude. Attitude differences were found on the demographic variables of sex, political party, and religion. Women expressed more tolerant attitudes than men toward all four outgroups studied. Republicans were more prejudiced toward homosexuals and women than were Democrats or Independents. Participants who identified themselves as Christians were less supportive of equality between the sexes than were Catholics, Protestants, or those with no religion Christians were also more prejudiced toward homosexuals than were Catholics or those with no religion. 相似文献
807.
Louis D. Burgio Terry J. Page Richard M. Capriotti 《Journal of applied behavior analysis》1985,18(1):45-59
We evaluated methods for comparing the effects of dextroamphetamine (Dexedrine), thioridazine (Mellaril), and contingency management in the control of severe behavior problems. A reversal design was used in which medications were systematically titrated and assessed in unstructured as well as structured settings with three clients. Subsequently, behavioral procedures including timeout, differential reinforcement of other behavior, and visual screening, were used in a multiple-baseline design across settings. The assessment and design methods were useful in comparing the interventions. Dextroamphetamine decreased inappropriate behaviors and improved academic behaviors in one client, but no reliable effects were observed in the other two clients. Thioridazine was variable across clients, settings, behaviors, and dosages. Contingency management produced consistent decreases in inappropriate behaviors and small improvements in academic performance. 相似文献
808.
Melvin M Mark 《Journal of experimental social psychology》1985,21(2):114-137
People often find that they do not have some positive outcome they once expected to obtain, while others around them have attained that outcome. Two experiments were conducted to assess how four possible responses to such a situation are affected by procedural justice (i.e., the fairness of the procedures by which the object was denied) and by one's expectations about obtaining the outcome in the future. The four possible responses examined were anger responses, achievement strivings, devaluation of the object (X), and self-deprecation. A repeated-measures analysis revealed that the dependent variables were differentially affected in Study 1, but less so in Study 2. Analyses further revealed effects of procedural justice, such that unfair procedures led to more anger, lower achievement strivings, greater devaluation of X, and (in Study 1 only) marginally less self-deprecation. Expectations had only a marginal affect on achievement strivings in Study 1, and an effect on self-deprecation in Study 2, with higher expectations leading to lower achievement strivings and less self-deprecation, respectively. Procedural justice and expectations interacted to affect subjects' derogation of the agent who deprived them (Study 1) and their devaluation of X (Study 2). Implications for future research and for theoretical development are discussed. 相似文献
809.
Erederick M. Schwantes 《Journal of experimental child psychology》1985,39(2):212-229
Two experiments investigated sentence context effects on the naming times of sentence completion words by third-grade children and college students. Across both experiments, the largest age difference in contextual facilitation was obtained for highly predictable, best completion words. Pronounced age differences in facilitation effects were also present for semantically acceptable target words which were much less predictable in the sentence context than the best completion words. However, age differences in contextual facilitation were negligible for target words which were associatively related to the best completion word, but which were not also semantically acceptable in the sentence context. Thus, the semantic acceptability of the word in the sentence context had a much greater influence on children's as compared to adults' word identification times, both when the word was highly predictable, as well as when it was much less predictable in the sentence context. 相似文献
810.
M G Clarkson R K Clifton B A Morrongiello 《Journal of experimental child psychology》1985,39(1):20-36
Two experiments assessed the importance of sound duration for eliciting head orientation responses from newborn infants. In Experiment 1, thirty infants turned with equal frequency toward 20-s continuous rattle sounds and 20-s trains of rattle segments. The duration of the rattle segments--14 and 100 ms (2/s), or 500 ms (1/s)--did not influence the likelihood of turning. Response latencies and durations proved quite similar for all stimuli. In Experiment 2, twenty-four infants heard continuous rattle sounds of four different durations: 1, 5, 10, and 20 s. They turned reliably to all stimulus durations; furthermore, the magnitude and temporal characteristics of head orientation responses did not differ for the four stimulus durations. These results suggest that the newborn's head orientation response may reflect a motor program that is initiated by auditory input and then executed in a similar fashion regardless of further stimulation. 相似文献