全文获取类型
收费全文 | 56247篇 |
免费 | 2349篇 |
国内免费 | 21篇 |
出版年
2020年 | 689篇 |
2019年 | 811篇 |
2018年 | 1145篇 |
2017年 | 1165篇 |
2016年 | 1210篇 |
2015年 | 864篇 |
2014年 | 1052篇 |
2013年 | 4876篇 |
2012年 | 1943篇 |
2011年 | 1938篇 |
2010年 | 1172篇 |
2009年 | 1196篇 |
2008年 | 1673篇 |
2007年 | 1637篇 |
2006年 | 1495篇 |
2005年 | 1247篇 |
2004年 | 1285篇 |
2003年 | 1236篇 |
2002年 | 1171篇 |
2001年 | 1929篇 |
2000年 | 1800篇 |
1999年 | 1353篇 |
1998年 | 626篇 |
1997年 | 538篇 |
1996年 | 614篇 |
1995年 | 557篇 |
1994年 | 545篇 |
1993年 | 530篇 |
1992年 | 1115篇 |
1991年 | 1021篇 |
1990年 | 1001篇 |
1989年 | 960篇 |
1988年 | 939篇 |
1987年 | 870篇 |
1986年 | 860篇 |
1985年 | 909篇 |
1984年 | 731篇 |
1983年 | 639篇 |
1982年 | 481篇 |
1979年 | 762篇 |
1978年 | 567篇 |
1975年 | 605篇 |
1974年 | 686篇 |
1973年 | 713篇 |
1972年 | 611篇 |
1971年 | 563篇 |
1970年 | 486篇 |
1968年 | 612篇 |
1967年 | 532篇 |
1966年 | 509篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
132.
The relationship between primary process thinking and two measures of anxiety was investigated in fourth- and fifth-grade children. Holt's Scoring System for Primary Process Responses on the Rorschach was the measure of primary process thinking. The major hypotheses were supported for boys in that frequency of expression of primary process material was positively related to behavioral manifestations of anxiety as measured by the Teacher's Rating Scale. Also, controlled access to and integration of primary process was negatively related to teacher's ratings of anxiety. There were no significant results for girls. Primary process measures were not related to the State-Trait Anxiety Inventory for Children. Possible reasons for the different relationships between the primary process measures and the anxiety measures are discussed. 相似文献
133.
134.
135.
D M Buss 《Journal of personality and social psychology》1988,54(4):616-628
Darwin's theory of sexual selection suggests that individuals compete with members of their own sex for reproductively relevant resources held by members of the opposite sex. Four empirical studies were conducted to identify tactics of intrasexual mate competition and to test four evolution-based hypotheses. A preliminary study yielded a taxonomy of tactics. Study 1 used close-friend observers to report performance frequencies of 23 tactics to test the hypotheses. Study 2 replicated Study 1's results by using a different data source and subject population. Study 3 provided an independent test of the hypotheses in assessing the perceived effectiveness of each tactic for male and female actors. Although the basic hypotheses were supported across all three studies, there were several predictive failures and unanticipated findings. Discussion centers on the heuristic as well as predictive role of evolutionary theory, and on implications for other arenas of intrasexual competition. 相似文献
136.
In three experiments we examined depressed individuals' mental control abilities and strategies. Experiment 1 revealed that although depressed college students were initially successful in suppressing negative material, they eventually experienced a resurgence of unwanted negative thoughts. Analysis of subjects' stream-of-consciousness reports indicated that this resurgence was associated with the use of negative thoughts as distracters from the unwanted item. In Experiment 2 depressed subjects acknowledged that positive distracters were more effective than negative ones in suppressing negative thoughts. This acknowledgement suggests that depressed subjects in Experiment 1 did not deliberately focus on negative distracters but that those thoughts automatically occurred because they were highly accessible. Experiment 3 demonstrated that depressed subjects' use of positive distracters could be increased somewhat when we provided such distracters and made them easily accessible. Taken together, the findings suggest that depression involves an enhanced accessibility of interconnected negative thoughts that can undermine mental control efforts. 相似文献
137.
Coping, locus of control, social support, and combat-related posttraumatic stress disorder: a prospective study 总被引:6,自引:0,他引:6
We examined the relations between coping, locus of control, and social support and combat-related posttraumatic stress disorder (PTSD). The sample consisted of 262 Israeli soldiers who suffered a combat stress reaction episode during the 1982 Lebanon war and were followed 2 and 3 years after their participation in combat. Cross-sectional analyses revealed significant relations between locus of control, coping, and social support and PTSD at the two points of assessment. Changes in PTSD from Time 1 to Time 2 were also associated with changes in coping. We discuss theoretical and methodological implications of the findings. 相似文献
138.
Nicola S. Schutte John M. Malouff Joan C. Post-Gorden Annette L. Rodasta 《Journal of applied social psychology》1988,18(5):454-460
Noting the pervasiveness of videogames in American culture, the authors set out to examine the effects that playing videogames has on children. Thirty-one children were matched on sex, randomly assigned to play either a violent (karate) videogame or a nonviolent (jungle vine swinging) videogame, and then observed during free play. The main results were that the children who had played the jungle swing videogame later played more with a jungle swing toy and that the children who played the violent videogame later showed more aggression. The authors interpreted the findings as an indication that young children who play videogames later tend to act similarly to how their videogame character acted. 相似文献
139.
Hubert J. M.Hermans 《Journal of personality》1988,56(4):785-812
ABSTRACT This study presents the technique of self-investigation as a research tool for the study of personal meaning from the perspective of the general and the particular After reviewing the nomothesis-idiography debate, I argue that personality psychology can benefit from a combination of nomothetic and idiographic research methodologies This creates a need for new theoretical frameworks that incorporate both nomo-concepts, enabling the study of people in general and idio-concepts, enabling the psychologist to understand the particular world of the individual Allport's term “value” is reformulated as the idio-concept “valuation,” which refers to personal meaning in an individual's history The term “affect,” as a central component in the process of valuation, is treated as a nomo-concept The relation between the two concepts is demonstrated by studying specific concerns in the history of an individual as recurrent expressions of general winner and loser experiences 相似文献
140.
Influence of positive affect on the subjective utility of gains and losses: it is just not worth the risk 总被引:5,自引:0,他引:5
A modification of the procedure originally used by Davidson, Suppes, and Siegel (1956) to measure subjective utility was used to study the influence of positive affect on individuals' perceived value (utility) functions. Results indicated, as expected, that persons in whom positive affect had been induced showed a more negative subjective utility for losses than did controls. This indicates that losses seem worse to people who are feeling happy than to those in a control condition. The subjective utility functions of the two groups did not differ as much, however, when people were considering potential gain. Thus, at least in the situation tested in this study, potential gains did not seem to be more appealing (nor less so) for affect subjects than they did for controls. These findings are discussed in relation to theoretical issues in decision making and work suggesting that positive affect can promote increased sensitivity to losses in situations of potential meaningful loss. 相似文献