全文获取类型
收费全文 | 5226篇 |
免费 | 717篇 |
国内免费 | 376篇 |
专业分类
6319篇 |
出版年
2024年 | 25篇 |
2023年 | 167篇 |
2022年 | 101篇 |
2021年 | 163篇 |
2020年 | 264篇 |
2019年 | 319篇 |
2018年 | 226篇 |
2017年 | 284篇 |
2016年 | 238篇 |
2015年 | 221篇 |
2014年 | 231篇 |
2013年 | 774篇 |
2012年 | 155篇 |
2011年 | 225篇 |
2010年 | 172篇 |
2009年 | 215篇 |
2008年 | 243篇 |
2007年 | 218篇 |
2006年 | 261篇 |
2005年 | 223篇 |
2004年 | 192篇 |
2003年 | 190篇 |
2002年 | 178篇 |
2001年 | 112篇 |
2000年 | 122篇 |
1999年 | 80篇 |
1998年 | 72篇 |
1997年 | 49篇 |
1996年 | 68篇 |
1995年 | 59篇 |
1994年 | 55篇 |
1993年 | 37篇 |
1992年 | 48篇 |
1991年 | 10篇 |
1990年 | 15篇 |
1989年 | 19篇 |
1988年 | 15篇 |
1987年 | 14篇 |
1986年 | 14篇 |
1985年 | 35篇 |
1984年 | 24篇 |
1983年 | 18篇 |
1982年 | 19篇 |
1981年 | 19篇 |
1980年 | 20篇 |
1979年 | 22篇 |
1978年 | 18篇 |
1977年 | 36篇 |
1976年 | 19篇 |
1975年 | 14篇 |
排序方式: 共有6319条查询结果,搜索用时 0 毫秒
71.
ObjectivesThe Integrated Model of Flow and Clutch States describes two overlapping psychological states that underlie exceptional performance and rewarding exercise experiences. However, research based on this model is currently hampered because no validated measure has yet been developed. Therefore, the aim of this multi-study paper was to develop and provide preliminary validation of the Flow-Clutch Scale in sport and exercise.DesignUsing two independent adult samples (n = 280; n = 264), three studies were conducted to develop and establish preliminary validity of the Flow-Clutch Scale.MethodIn Study 1, we developed an initial version of the scale and established content validity using an expert panel. In Study 2, we employed exploratory factor analysis to: identify the most appropriate factor structure; examine the scale’s internal consistency; test whether the scale differentiated between individuals who experience flow, clutch, or neither state; and examine relationships with the Flow State Scale-2. In Study 3, we aimed to replicate findings of Study 2 with an independent sample, and employed confirmatory factor analysis to confirm the factor structure, internal consistency, and relationships with the Flow State Scale-2.ResultsThe results provide preliminary validation of the four-factor, 22-item Flow-Clutch Scale.ConclusionsThese studies indicate the Flow-Clutch Scale represents a useful scale for researchers interested in examining flow and/or clutch states in sport and exercise. Recommendations are provided for further research to continue testing, and accumulating evidence for, the validity and reliability of the Flow-Clutch Scale. 相似文献
72.
Stephanie M. Peck David P. Wacker Wendy K. Berg Linda J. Cooper Kimberly A. Brown David Richman Jennifer J. McComas Pamela Frischmeyer Thomas Millard 《Journal of applied behavior analysis》1996,29(3):263-290
The choice-making behavior of 5 young children with developmental disabilities who engaged in aberrant behavior was studied within a concurrent operants framework. Experimental analyses were conducted to identify reinforcers that maintained aberrant behavior, and functional communication training packages were implemented to teach the participants to gain reinforcement using mands. Next, a choice-making analysis, in which the participants chose one of two responses (either a mand or an alternative neutral response) to obtain different durations and qualities of reinforcement, was conducted. Finally, treatment packages involving choice making via manding were implemented to decrease inappropriate behavior and to increase mands. The results extended previous applications of choice making to severe behavior disorders and across behaviors maintained by positive and negative reinforcement. 相似文献
73.
Michael G. Sawyer David L. Streiner Peter Baghurst 《Journal of abnormal child psychology》1998,26(6):407-414
This study examined the effect of parental distress on mothers' and fathers' reports of children's emotional and behavioral problems. The subjects were the parents of 696 children aged 10 to 11 or 14 to 15 years living in two-parent families in the community. The study utilized an extended version of the model previously employed by Fergusson, Lynskey, and Horwood (1993) to examine the impact of maternal depression on mothers' reports of children's behavior. In the present study, the extended model was used to assess the impact of distress on reports of childhood externalizing and internalizing problems obtained from both mothers and fathers. The results suggested that distress had little influence on mothers' or fathers' reports of childhood behavior problems. It is concluded that in community studies the size of any bias in mothers' and fathers' reports of childhood behavior problems due to parental distress is likely to be very small and of little clinical significance. 相似文献
74.
75.
Maritza Montero 《American journal of community psychology》1996,24(5):589-605
Comparing the history of community psychology as it developed in the U.S. during the 1960s with the community psychology that
developed 10 years later in Latin America, one is reminded of the title of Plutarch’s masterpice,Parallel Lives. Although there was very little contact or communication between the first community psychologists in these regions, very
similar principles and orientations evolved. These similarities are particularly striking given the many ways in which the
U.S. and Latin American contexts and histories differ. Since most readers are expected to be familiar with the history of
community psychology as it developed in the U.S., this paper focuses primarily on the development of community psychology
in Latin America in order to highlight areas of convergence as well as divergence from the U.S. experience.
This paper is based on an address presented at the Fourth Biennial Conference, Society for Community Research and Action,
Division 27 of the American Psychological Association, William and Mary College, Williamsburg, Virginia, 1993. The author
acknowledges the valuable help received from J. R. Newbrough and from the referees in the revision of this paper. 相似文献
76.
Students in a residential special school for children with emotional and behavioral disorders participated in a study designed to reduce their levels of inappropriate behavior. The residential care staff rated the students' behavioral problems and their class teachers rated their overt self-esteem pre and post intervention. In addition, the students completed self-ratings of their self-esteem. The students were divided into two groups, experimental and control. A multiple baseline across behaviors design was used to assess behavioral changes in the experimental group. Both groups received tangible rewards to the same level but only the experimental group received them contingent upon behaving appropriately. Results showed that the experimental group students made substantial reductions in their levels of inappropriate behavior, which were maintained at a three-month followup. Also, ratings of their behavioral problems by residential child care staff suggested that this improvement in behavior had generalized beyond the classroom to the residential setting. However, no significant differences were found between the pre- and post-intervention ratings of their self-esteem or teacher ratings of their overt self-esteem. 相似文献
77.
78.
79.
Changes in goals and values between early and middle adulthood were investigated using a longitudinal sample of women and
their male partners. Measures designed to assess personality changes as described by Gutmann and Jung were coded from open-ended
responses to questions about middle-aged subjects' concurrent and recollected goals and values. The findings indicated that
both women and men declined in gender-traditional goals and values and increased in individual goals and values. Archival
data for women showed that recollections were accurate and that both cohort and personality factors were related to the extent
to which individuals' goals and values changed over time. 相似文献
80.
Lynne Werner Olsho 《Infant behavior & development》1985,8(4):371-384
The results of an earlier study (Olsho, 1984) indicated that 5- to 8-month-old infants were relatively better at discriminating among high-frequency pitches than low. In the present study, sensory and nonsensory explanations for that effect were evaluated by examining infants' performance in a task requiring similar sensory processing but differing in the demands placed on processes such as memory. Infants' ability to resolve frequency was tested using a tonal masking paradigm, the psychophysical tuning curve. Twenty-four infants were tested at probe frequencies ranging from 500 to 4000 Hz; a group of young adults served as a comparison. Masked and unmasked thresholds were estimated using the visually reinforced head turn procedure in conjunction with an adaptive psychophysical method. Although infants' tuning curves fell below those of adults (indicating poorer performance), the widths and slopes of the infants' curves were not different from the adults'. Moreover, the difference between age groups remained constant across probe frequencies. These findings imply that by 5 months of age, the infant's ability to resolve sound frequency is similar to the adult's. 相似文献