全文获取类型
收费全文 | 388篇 |
免费 | 27篇 |
国内免费 | 2篇 |
专业分类
417篇 |
出版年
2023年 | 4篇 |
2022年 | 3篇 |
2021年 | 7篇 |
2020年 | 12篇 |
2019年 | 14篇 |
2018年 | 13篇 |
2017年 | 7篇 |
2016年 | 13篇 |
2015年 | 17篇 |
2014年 | 12篇 |
2013年 | 56篇 |
2012年 | 20篇 |
2011年 | 22篇 |
2010年 | 11篇 |
2009年 | 23篇 |
2008年 | 25篇 |
2007年 | 18篇 |
2006年 | 18篇 |
2005年 | 12篇 |
2004年 | 12篇 |
2003年 | 20篇 |
2002年 | 12篇 |
2001年 | 6篇 |
2000年 | 4篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1997年 | 8篇 |
1996年 | 5篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1991年 | 4篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1984年 | 3篇 |
1982年 | 1篇 |
1980年 | 3篇 |
1977年 | 1篇 |
1975年 | 1篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1967年 | 2篇 |
1960年 | 1篇 |
1958年 | 1篇 |
排序方式: 共有417条查询结果,搜索用时 0 毫秒
101.
This longitudinal study investigates the relation between recall memory and communication in infancy and later cognitive development. Twenty-six typically developing Swedish children were tested during infancy for deferred imitation (memory), joint attention (JA), and requesting (nonverbal communication); they also were tested during childhood for language and cognitive competence. Results showed that infants with low performance on both deferred imitation at 9 months and joint attention at 14 months obtained a significantly lower score on a test of cognitive abilities at 4 years of age. This long-term prediction from preverbal infancy to childhood cognition is of interest both to developmental theory and to practice. 相似文献
102.
The prevalence of older adolescents' positive attitudes toward younger sexual partners was investigated through three measures of self-reported hypothetical likelihood of having sex with preadolescents and younger adolescents (LSA), using a school-based cluster sample of 710 Norwegian 18- to 19-year-olds attending nonvocational high schools in Oslo. Some likelihood of having sex with a preadolescent (less than 12 years of age) was reported by 5.9% of the males. The 19.1% of the males who indicated some likelihood of having sex with a 13- to 14-year old, compared to those who did not, reported more high-frequency drinking, more alcohol-related problems, earlier sexual initiation, more conduct problems, and poorer psychosocial adjustment. This subgroup also reported more high-frequency use of pornography, having more friends with an interest in child pornography and violent pornography, and greater use of coercion to obtain sexual favors. 相似文献
103.
Clinically significant change refers to meaningful change in individual patient functioning during psychotherapy. Following the operational definition of clinically significant change offered by Jacobson, Follette, and Revenstorf (1984), several alternatives have been proposed because they were thought to be either more accurate or more sensitive to detecting meaningful change. In this study, we compared five methods using a sample of 386 outpatients who underwent treatment in routine clinical practice. Differences were found between methods, suggesting that the statistical method used to calculate clinical significance has an effect on estimates of meaningful change. The Jacobson method (Jacobson & Truax, 1991) provided a moderate estimate of treatment effects and was recommended for use in outcome studies and research on clinically significant change, but future research is needed to validate this statistical method. 相似文献
104.
Carlsson AH Bjorvatn C Engebretsen LF Berglund G Natvig GK 《Journal of genetic counseling》2004,13(5):425-445
The aim of this multicenter study was to explore associations between psychosocial factors (general self-efficacy, perceived availability of social support, cancer-related distress) and health-related quality of life, among individuals at risk for hereditary cancer. One-hundred and twenty one participants with a family history of breast-cancer or colorectal cancer answered a questionnaire 2-4 weeks prior to genetic counseling. The two dimensions of the health-related quality of life measure, mental and physical health were both used as outcome variables. Multiple regression (linear) analyses revealed that increasing degrees of cancer-related distress was related to decreasing degrees of mental health whereas increasing degrees of self-efficacy and social support were related to increasing degrees of this outcome variable. Self-efficacy, self-esteem support and tangible aid seemed to moderate the relationship between cancer-related distress and mental health. These results suggest that self-efficacy and certain resources of social support buffer the negative association between cancer-related distress and mental health, and might be suitable for interventional efforts. Implications for genetic counseling practice are discussed. 相似文献
105.
Sex differences exist for several cognitive tasks and estrogen has been suggested to influence these differences. Eighteen men and 18 women were matched on age and estradiol level. Potential sex differences were assessed in episodic memory, semantic memory, verbal fluency, problem solving, and visuospatial ability. Significant sex differences, favoring women, were found for tasks assessing episodic memory. Correlations between estradiol level and cognitive performance were significant for face recognition in females. Since sex differences remained in verbal episodic memory tasks and face recognition despite matched levels of estradiol, circulating estradiol does not appear to be of paramount consequence for observed sex differences in episodic memory. 相似文献
106.
An instrument measuring attitudes toward suicide was developed through two postal questionnaire surveys, 1986 and 1996, approaching general population samples of 700 and 1,000 persons, respectively, and with response rates of 75% and 64%. A 10-factor model was obtained and comparisons between waves revealed an overall more permissive and pro-preventional attitude in 1996. The results implied complex relationships at the aggregated level between attitudes and suicidal behavior, depending on type of suicidal behavior, attitude factor, and subgroup. At the individual level, persons answering affirmative on own suicidal behavior, as compared to the nonsuicidal group, held a more permissive and understanding attitude toward suicide. 相似文献
107.
108.
This study investigated the effects of an internet-based self-help stress management program with a randomized controlled design. Of 85 participants, 26% dropped out, leaving a final sample of 63 participants with 23 in the treatment group and 40 in the waiting list control group. Treatment included applied relaxation, problem solving, time management and cognitive restructuring. All information and treatment interventions were provided via the internet. Results were evaluated with the Perceived Stress Scale and the Hospital Anxiety and Depression Scale. Improvements were seen in both groups, with greater improvements in the self-help treatment group. It is concluded that the internet can be used to provide stress management techniques and result in stress relief. However, spontaneous improvement, differential dropout rate and compliance need to be monitored in future studies. 相似文献
109.
We review a program of research that examines people's judgments about how they are seen by others. The research indicates that people tend to anchor on their own experience when making such judgments, with the result that their assessments are often egocentrically biased. Our review focuses on two biases in particular, the spotlight effect, or people's tendency to overestimate the extent to which their behavior and appearance are noticed and evaluated by others, and the illusion of transparency, or people's tendency to overestimate the extent to which their internal states "leak out" and are detectable by others. 相似文献
110.
Maria Lehnung Bernd Leplow Lars Friege Arne Herzog Roman Ferstl Maximilian Mehdorn 《British journal of psychology (London, England : 1953)》1998,89(3):463-480
The present study addresses the question of what kind of information children use when orientating in new environments, if given proximal and distal landmarks, and how spatial memory develops in the investigated age groups. Ten 5-year-old, ten 7-year-old and ten 10-year-old children were presented with the ‘Kiel Locomotor Maze’, containing features of the Radial Arm Maze and the Morris Water Maze, in order to assess spatial memory and orientation. Children had to learn to approach baited locations only. Task difficulty was equated with respect to the children's age. Training was given until the children reached criterion. During testing, the maze configuration and response requirements were systematically altered, including response rotation, cue rotation, cue deletion and response rotation with cue deletion in order to assess the spatial strategies used by the children. During training and testing, working-memory errors (WM), reference-memory errors (RM) and working-reference memory errors (WR) were recorded. As expected, no difference between age groups appeared during training, thus confirming comparable task difficulty across age groups. During testing, age groups differed significantly with regard to the orientation strategy used. The 5-year-olds were bound to a cue strategy, orientating towards local, proximal cues. The 10-year-olds mastered all tasks, thus displaying a place strategy, being able to use distal cues for orientation, and were even able to do so after being rotated 180°. The 7-year-olds proved to be at an age of transition: five of them were bound to a cue strategy, five children were able to adopt a place strategy. The differences in the orientation strategies used by children of different age groups was reflected by the sum of errors they made, also by RM. WM were found to be rare, especially in older children. We conclude that preschoolers use a cue strategy, that the development of place strategies occurs during primary school age and seems to be complete by the age of 10 years. 相似文献