全文获取类型
收费全文 | 718篇 |
免费 | 22篇 |
出版年
2020年 | 6篇 |
2019年 | 8篇 |
2018年 | 19篇 |
2017年 | 14篇 |
2016年 | 23篇 |
2015年 | 10篇 |
2014年 | 21篇 |
2013年 | 87篇 |
2012年 | 31篇 |
2011年 | 23篇 |
2010年 | 17篇 |
2009年 | 15篇 |
2008年 | 22篇 |
2007年 | 34篇 |
2006年 | 17篇 |
2005年 | 29篇 |
2004年 | 28篇 |
2003年 | 22篇 |
2002年 | 26篇 |
2001年 | 15篇 |
2000年 | 10篇 |
1999年 | 16篇 |
1998年 | 9篇 |
1997年 | 8篇 |
1996年 | 7篇 |
1995年 | 6篇 |
1994年 | 7篇 |
1993年 | 9篇 |
1992年 | 11篇 |
1991年 | 6篇 |
1990年 | 9篇 |
1989年 | 5篇 |
1988年 | 8篇 |
1985年 | 4篇 |
1984年 | 7篇 |
1983年 | 10篇 |
1982年 | 5篇 |
1981年 | 13篇 |
1980年 | 12篇 |
1979年 | 10篇 |
1978年 | 7篇 |
1977年 | 6篇 |
1976年 | 9篇 |
1975年 | 7篇 |
1974年 | 14篇 |
1973年 | 11篇 |
1972年 | 4篇 |
1971年 | 6篇 |
1970年 | 5篇 |
1969年 | 4篇 |
排序方式: 共有740条查询结果,搜索用时 15 毫秒
111.
This article examined the ability of six different coping strategies and their perceived effectiveness in predicting positive and negative affect in sport. Furthermore, it was investigated whether perceived coping effectiveness moderated the influence of coping strategies on affect. British University athletes (N = 356) were requested to recall a recent important competition in their sport when they had a stressful or challenging experience. They were then asked to rate the extent to which they relied on a number of different coping strategies to deal with the situation and the degree to which they found these effective. In agreement with the theoretical predictions of Folkman (1984), problem-focused coping predicted positive affect whereas emotion-focused coping predicted negative affect. Furthermore, for almost all the coping variables, their perceived effectiveness predicted, in a positive way, positive affect and negatively, negative affect. Moreover, the perceived effectiveness of the coping strategies of seeking social support, venting of emotions, and behavioural disengagement, moderated the influence of those strategies on affect. Lastly, a comparison between high and low effective coping groups showed that the former was associated with more pleasant affective experiences. 相似文献
112.
Contradictory results have been reported on the effectiveness of various reinforcers with children of different ages and socioeconomic classes. The present study considered the relative effectiveness of two types of verbal and one type of tangible reinforcement on a two-choice discrimination task (marble-in-the-hole) for preschool children. IQ and operant level were treated as covariates and accounted for the observed differences in performance between the 24 middle-class and 24 lower-class children and between the 24 males and 24 females. Disparate findings of previous studies regarding sex and social class differences might have been reconciled if baseline and IQ had been considered. 相似文献
113.
114.
115.
116.
A fully automated training apparatus, using thermoregulation as performance incentive, was constructed to train baby chicks on visual discrimination and reversal problems. In the base condition, the S is bathed in cold air in a small training cubicle. Two stimuli are back-projected onto two display windows according to a pseudorandom balanced schedule. A peck at the positive stimulus gives convective as well as radiant heat reward with adjustable temperature and duration. A peck at the negative stimulus merely advances the program to the next trial. Permanent printout records give trial-to-trial information on response choice and latency. Performance data of 64 Ss are reported. 相似文献
117.
The consistently positive relationship between initial riskiness and perceived influence obtained in past work led us to speculate that (1) the deliberative effort involved in making a choice increases with its riskiness, as a result (2) individuals who select a risky course of action will be more committed to their choice than conservative individuals, and (3) the former will be more influential in group decisions. The following support was obtained for these conjectures When individuals had to select a reaction time interval to beat, those who were risky, that is, who selected a short interval, were more confident in having chosen wisely, were less likely to feel they might change their choice given the opportunity, and took longer to make their choice than those who were conservative, that is, who selected a long interval The first two of these measures were assumed to reflect commitment to the choice, and the third was taken as a rough indication of the amount of effort involved in choosing A group decision was also made regarding the reaction time interval It tended to be riskier than that preferred by the average individual prior to the decision if the riskiest member was more committed and/or expended more effort in choosing than his partners, on the other hand, it tended to be more conservative than the average prior preference if the most conservative member was more committed and or expended more effort 相似文献
118.
119.
This study examined the relationship of mean palmar sweat density of all fingers of each hand, thumbs excluded, to asymetrical interdigital sweat variability in adult stutterers. In addition, the relationship of mean print density to part word repetitions and prolongations was investigated.
A modification of the palmar sweat printer developed by Brutten (1957) enabling the accommodation of eight fingers, was employed to obtain simultaneous PSI under identical controlled conditions for all fingers.
Results indicated that the eight fingers are not reliable areas for the determination of palmar sweating in adult stutterers. Consequently, the PSI as it is currently employed, as well as the method used in the present study, does not appear to be an acceptable objective measure of ANS arousal in adult stutterers. 相似文献
120.