全文获取类型
收费全文 | 1752篇 |
免费 | 80篇 |
专业分类
1832篇 |
出版年
2020年 | 26篇 |
2019年 | 39篇 |
2018年 | 46篇 |
2017年 | 42篇 |
2016年 | 47篇 |
2015年 | 31篇 |
2014年 | 39篇 |
2013年 | 176篇 |
2012年 | 49篇 |
2011年 | 56篇 |
2010年 | 31篇 |
2009年 | 26篇 |
2008年 | 64篇 |
2007年 | 69篇 |
2006年 | 43篇 |
2005年 | 46篇 |
2004年 | 54篇 |
2003年 | 54篇 |
2002年 | 45篇 |
2001年 | 37篇 |
2000年 | 32篇 |
1999年 | 24篇 |
1998年 | 29篇 |
1997年 | 27篇 |
1996年 | 33篇 |
1995年 | 24篇 |
1994年 | 24篇 |
1993年 | 20篇 |
1992年 | 28篇 |
1991年 | 19篇 |
1990年 | 15篇 |
1989年 | 17篇 |
1988年 | 16篇 |
1987年 | 22篇 |
1986年 | 18篇 |
1985年 | 23篇 |
1984年 | 24篇 |
1983年 | 22篇 |
1982年 | 16篇 |
1981年 | 24篇 |
1980年 | 15篇 |
1979年 | 24篇 |
1978年 | 17篇 |
1977年 | 25篇 |
1976年 | 24篇 |
1975年 | 14篇 |
1974年 | 21篇 |
1973年 | 14篇 |
1968年 | 13篇 |
1966年 | 13篇 |
排序方式: 共有1832条查询结果,搜索用时 0 毫秒
61.
Wayne Viney Neil Johnson Larry Jacobson 《Quarterly journal of experimental psychology (2006)》1978,30(4):747-754
Sixty-four male Wistar rats were given acquisition training in an enclosed straight-alley runway which could be adjusted for angles of inclination. The 2×2×2 design involved two angles of inclination in acquisition (0° and 40°) and two angles of inclination in extinction (0° and 40°). Between acquisition and extinction, half the subjects were exposed to a latent extinction procedure and half served as controls. Number of responses in a 30-min extinction session was an inverse function of effort required in extinction. Additionally, latent extinction procedures resulted in reduced resistance to extinction, but only when the effort conditions of acquisition and extinction were constant. When the effort conditions of acquisition and extinction were dissimilar, latent extinction procedures resulted in increased resistance to extinction. The results raise questions about the nature of the learning which occurs during latent extinction training. 相似文献
62.
63.
The external validity of the attraction-leniency effect observed repeatedly in jury research was examined by adding two small elements of juridicial realism to the usual paradigm modeled after Landy and Aronson (1969). An attraction-leniency effect was not found when judge's instructions regarding the criteria of guilt were provided, and subjects assessed probable guilt rather than appropriate sentence. 相似文献
64.
The ability to retain lists of verbal and nonverbalizable items across recurrent recognition tasks was tested in three groups: (1) stroke patients with a left-brain lesion and aphasia, (2) stroke patients with a right-brain lesion and left hemiplegia, and (3) nonneurologically impaired outpatients. As determined with signal detection measures, aphasics were deficient in discriminating words that were to be remembered from those that were not; their recognition of nonverbal visual (geometric art) or auditory (bird calls) patterns, however, was unimpaired. Left hemiplegics showed the opposite pattern. After a long-term interval (<10 min), correct recognition of words was diminished in all groups whereas recognition of visual patterns increased. Both groups of stroke patients adopted material-specific decision criteria which in part accounted for the dissociation of verbal and nonverbal recognition memory by laterality of lesion. Item analysis indicated that aphasics' verbal memory difficulties were affected by acoustic-semantic confusion of list words. 相似文献
65.
66.
67.
Wayne Backman 《Synthese》1983,57(3):269-276
Traditionally scientific rationality has been distinguished from mere practical rationality. It has seemed that it is sometimes rational to accept statements for the purposes of particular practical deliberations even though it would not be rational to count them as having been confirmed by science. Isaac Levi contends that this traditional view is mistaken. He thinks that there should be a single standard of acceptance for all purposes, scientific and practical. The author contends that Levi has given no good reason for identifying scientific with practical rationality. And he argues that Levi's own theory is inconsistent with the thesis that a scientist should use a single standard of acceptance in all his scientific deliberations. 相似文献
68.
Ronald J. Prinz deRosset Myers E. Wayne Holden Kenneth J. Tarnowski William A. Roberts 《Journal of abnormal child psychology》1983,11(3):393-399
In previous work, investigators have found a relationship between marital discord and childhood conduct problems (aggression) in clinic samples. Given the wide variability of aggression found among hyperactive children,it would follow from previous work that child aggression may be associated with marital discord in a hyperactive population. This hypothesis was tested in a sample of 23 boys (ages 5 to 8) diagnosed as attention deficit with hyperactivity. Aggressive behaviors were tracked by the children's teachers for 12 school days. Parental and teacher ratings of conduct problems were also obtained. Additionally, the auditory version of the laboratory Continuous Performance Test was administered. Marital adjustment, overt hostility, and conflict tactics, as reported by the mothers, were not significantly correlated with any of the measures of aggression or conduct problems. In other words, marital discord in families with a hyperactive boy did not explain differential rates of aggressive behavior despite definite variability in both the marital and child behavioral measures. Marital discord was marginally related to severity of attentional deficit on the Continuous Performance Test. The results underscore the need for caution in attempting to extend findings from a general population (i.e., undifferentiated clinicreferred children) to a specific diagnostic subgroup (i.e., attention-deficit hyperactive children). 相似文献
69.
A complex in-basket simulation and a paper-and-pencil scenario experiment were used to study relationships between organizational leadership and gender. Separate samples completed identical attitude instruments in the independent studies. Analysis revealed that substantially more of the total variance was accounted for in the simulation study than in the scenario investigation. Also, more overt, gender-based responses were observed in the scenario study. It was concluded that social simulation may tap a deeper level of psychological process and may elicit more subject involvement than typical experimental methods. Thus, the more complex procedures of the simulation, as compared to those of a typical method such as a scenario study, are justified in the study of organizational behavior. 相似文献
70.
In a sample of 261 state hospital sexual offenders, Minnesota Multiphasic Personality Inventory (MMPI) profiles did not differ for offenders with adult victims versus offenders with child victims when offender age was controlled. MMPI 2-point analyses for the whole sample revealed five common codes that were independent of victim maturity. The sample was randomly divided in half and subjected to a cluster-analytic procedure which revealed two MMPI clusters. The first cluster was unelevated, with Scale 4 as its high point. The second cluster had multiple elevations, with Scales 8, 4, 2, and 7 as the highest scales. These clusters were replicated in a cluster analysis of the second half of the sample. However, when the sample was recombined, the two clusters were not externally validated basis on demographic and criminological variables. The results suggest that common psychological variables among sexual offenders may have more discriminative value than victim maturity in developing sexual offender taxonomies. 相似文献