全文获取类型
收费全文 | 70397篇 |
免费 | 2814篇 |
国内免费 | 29篇 |
出版年
2020年 | 738篇 |
2019年 | 897篇 |
2018年 | 1214篇 |
2017年 | 1287篇 |
2016年 | 1359篇 |
2015年 | 970篇 |
2014年 | 1180篇 |
2013年 | 5237篇 |
2012年 | 2164篇 |
2011年 | 2162篇 |
2010年 | 1387篇 |
2009年 | 1308篇 |
2008年 | 1943篇 |
2007年 | 1944篇 |
2006年 | 1717篇 |
2005年 | 1588篇 |
2004年 | 1471篇 |
2003年 | 1369篇 |
2002年 | 1404篇 |
2001年 | 2169篇 |
2000年 | 2070篇 |
1999年 | 1582篇 |
1998年 | 720篇 |
1997年 | 660篇 |
1996年 | 633篇 |
1992年 | 1437篇 |
1991年 | 1297篇 |
1990年 | 1341篇 |
1989年 | 1180篇 |
1988年 | 1218篇 |
1987年 | 1143篇 |
1986年 | 1199篇 |
1985年 | 1211篇 |
1984年 | 994篇 |
1983年 | 945篇 |
1982年 | 673篇 |
1979年 | 1143篇 |
1978年 | 763篇 |
1977年 | 717篇 |
1976年 | 684篇 |
1975年 | 943篇 |
1974年 | 1079篇 |
1973年 | 1143篇 |
1972年 | 916篇 |
1971年 | 875篇 |
1970年 | 838篇 |
1969年 | 876篇 |
1968年 | 1110篇 |
1967年 | 999篇 |
1966年 | 868篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
R S Scott 《Perceptual and motor skills》1985,60(2):525-526
Rorschach protocols, focusing on Exner's Four Square, were obtained for 14 boys who had been referred for a second opinion following an initial diagnosis as learning disabled. The findings indicated wide diversity, suggesting that a significant proportion of students manifest fundamental problems which are not essentially cognitive in nature. For these students, traditional psychoeducational decisions may be inappropriate and unproductive. 相似文献
942.
40 women were taught to use self-statements to cope with pain caused by ice water. The trainer used four different strategies for reassigning a homework task of using self-statements to cope with pain produced by immersing one hand in ice water. The strategies were equally effective in eliciting compliance with the homework assignment. 相似文献
943.
Psychometric studies on the specificity of psychological performance disorders of epileptic patients
H Herzer G Rabending R Altenstein M Grimmberger 《Psychiatrie, Neurologie, und medizinische Psychologie》1985,37(1):1-10
Using a psychological test battery for registration of psychic/psychomotoric speed and flexibility/perseveration we examined 78 epileptic patients with different forms of epilepsy and the same number of brain healthy control persons, parallelised in sex, age, education, profession and intelligence. The registrated data were varianz-, correlation- and factoranalised. We found a deceleration of psychic/psychomotoric speed as a primary basic disorder in epileptics. Decreases of flexibility independent of speed were not ascertainable. 相似文献
944.
945.
The present experiments studied a three-event delayed sequence-discrimination (DSD) task: one arrangement (order) of two stimuli (red and yellow overhead lights) taken three in succession (e.g., red, yellow, red) was the positive sequence and the remaining seven arrangements were the negative sequences for responding and reward during the subsequent test stimulus. In Experiment 1, the final stimulus (recency) and the order of stimuli in the positive sequence controlled acquisition of discrimination. In Experiment 2, increasing the duration of memory intervals between stimuli reduced the discriminability of those negative sequences identical to the positive sequence after the delay. Three-event DSD performance in Experiments 1 and 2 was similar to two-event DSD performance in comparable published experiments. Models developed to explain pigeon performance in two-event DSD were extended to the three-event task. Results from both two- and three-event versions of the DSD task falsified a noncumulative model and several cumulative integration models (i.e., adding, averging, and some multiplying models), but corroborated one cumulative, multiplying model. 相似文献
946.
947.
948.
949.
950.