全文获取类型
收费全文 | 10505篇 |
免费 | 425篇 |
国内免费 | 6篇 |
出版年
2021年 | 89篇 |
2020年 | 158篇 |
2019年 | 193篇 |
2018年 | 235篇 |
2017年 | 253篇 |
2016年 | 246篇 |
2015年 | 201篇 |
2014年 | 279篇 |
2013年 | 1188篇 |
2012年 | 416篇 |
2011年 | 454篇 |
2010年 | 265篇 |
2009年 | 295篇 |
2008年 | 345篇 |
2007年 | 402篇 |
2006年 | 326篇 |
2005年 | 296篇 |
2004年 | 314篇 |
2003年 | 303篇 |
2002年 | 285篇 |
2001年 | 155篇 |
2000年 | 134篇 |
1999年 | 150篇 |
1998年 | 157篇 |
1997年 | 154篇 |
1996年 | 117篇 |
1995年 | 124篇 |
1994年 | 120篇 |
1993年 | 151篇 |
1992年 | 134篇 |
1991年 | 102篇 |
1990年 | 111篇 |
1989年 | 96篇 |
1988年 | 105篇 |
1987年 | 115篇 |
1986年 | 107篇 |
1985年 | 104篇 |
1984年 | 121篇 |
1983年 | 124篇 |
1982年 | 133篇 |
1981年 | 119篇 |
1980年 | 129篇 |
1979年 | 112篇 |
1978年 | 143篇 |
1977年 | 127篇 |
1976年 | 119篇 |
1975年 | 143篇 |
1974年 | 127篇 |
1973年 | 89篇 |
1972年 | 81篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
Caryn L. Carlson Ph.D. William E. Pelham Jr. Richard Milich Joanne Dixon 《Journal of abnormal child psychology》1992,20(2):213-232
Twenty-four boys with attention deficit-hyperactivity disorder (ADHD) participating in an intensive summer treatment program each received b.i.d. placebo and two doses of methylphenidate (MPH, 0.3 mg/kg and 0.6 mg/kg) crossed with two classroom settings: a behavior modification classroom including a token economy system, time out and daily home report card, and a regular classroom setting not using these procedures. Dependent variables included classroom observations of on-task and disruptive behavior, academic work completion and accuracy, and daily self-ratings of performance. Both MPH and behavior modification alone significantly improved children's classroom behavior, but only MPH improved children's academic productivity and accuracy. Singly, behavior therapy and 0.3 mg/kg PMH produced roughly equivalent improvements in classroom behavior. Further, the combination of behavior therapy and 0.3 mg/kg MPH resulted in maximal behavioral improvements, which were nearly identical to those obtained with 0.6 mg/kg MPH alone.The authors gratefully acknowledge the assistance of Patricia Donovan, Michelle Berry, Mary Ingram, Patricia Wells, Beth Gnagy, Karen Greenslade, Mary Hamilton, and the entire staff of the Western Psychiatric Institute and Clinic ADHD Summer Treatment Program. 相似文献
42.
The present experiment shows that a conditioned taste aversion procedure can support discrimination learning at dosages of morphine comparable to those required to produce motivational effects. Sprague-Dawley rats were injected with 4.0 mg/kg morphine sulfate prior to a saccharin-lithium chloride pairing, and physiological saline prior to a saccharin-saline pairing. The rats avoided the saccharin solution following the administration of morphine and consumed significantly more saccharin following saline administration after four discrimination cycles. After this initial discrimination the subjects were trained with progressively lower doses of morphine. Discrimination learning was apparent at doses of 2.0, 1.5, 1.0, 0.75 and 0.5 mg/kg. Animals initially trained with 1.0 mg/kg morphine also learned the discrimination but required 10 training cycles. After this initial discrimination the subjects were trained with progressively lower dosages of morphine and showed a discrimination at a dosage of 0.5 mg/kg. 相似文献
43.
Traditionally, communication skills training has focused principally on overt behaviours that are clearly identifiable. In recent years there has been an increasing awareness that cognitive processes can have considerable influence on behaviour. An attempt was made to establish whether changes in cognitions occurred as a result of a behaviourally-based communication skills training programme in which there had been no explicit attempt to bring about such cognitive changes. More specifically, the study examined whether such a programme resulted in changes in aspects of the personal construct space of students on a Diploma in Careers Guidance course. The results offered some support for the hypothesis that the programme produced changes in the students' personal construct space. 相似文献
44.
David Lester Rita Martin Trina Serrecchia Josette Sgro 《Personality and individual differences》1992,13(12)
The desire to merge identities with an intimate partner was found to be negatively related to psychoticism but related to other social desires, such as the desire for physical closeness and identifying with the achievements of others. 相似文献
45.
46.
This study investigated the relationship between intergenerational family relationships and Frankl's concept of meaning in life. Intergenerational family relationships were measured by the Personal Authority in the Family System Questionnaire (PAFS-QE) by Bray, Williamson, and Malone. The meaning in life variables were measured by the Life Attitude Profile-Revised (LAP-R) by Reker. This quantitative study, using the BMDP Statistical Package (Dixon, 1990), correlated the scores on various subscales from both instruments, resulting in seven statistically significant relationships. The findings, although modest, suggest the existence of a relationship between these two theoretical areas.This article is based in part on the first author's doctoral dissertation at Texas Woman's University.A copy of the PAFS-Q may be obtained from: James H. Bray, PhD, 5510 Greenbriar, Houston, TX 77005. A copy of the LAP-R may be obtained from: Gary Reker, PhD, Trent University, Psychology Department, Peterborough, Ontario Canada K9J 7B8. 相似文献
47.
Paul Norman Maggie Edwards Mike Fitter William Gray 《Counselling psychology quarterly》1992,5(2):135-148
The primary care setting is seen by many to be at the forefront of the attempt to encourage people to follow healthier diets. Conducted in a single practice, the present study firstly considered the effectiveness of three ‘healthy eating’ clinics for patients found to have elevated cholesterol levels at screening. Through the use of a randomised trial, these patients received either basic dietay information or were invited back more frequently and requested to complete food diaries, half of which were then analysed through a computer program. At one year follow up the three programmes were found to have produced a 6.7% reduction in cholesterol levels. However, no differences were found between the three programmes. The study secondly examined a range of health belieji, based on the health belief model, as predictors of reductions in cholesterol levels. These were generally found to be poor predictors, with only the belief that one's diet is related to the chances of developing a number of major conditions and the perception of bam'ers dealing with confidence predicting these reductions. Finally, the case for incorporating self-efficacy beliefs into the healh belief model is outlined and the need for health counsellors to tailor their messages to the pre-existing beliefi and behaviours of patients is highlighted. 相似文献
48.
49.
50.
Nancy C. Higgins C. Alec Pollard William T. Merkel 《Current psychology (New Brunswick, N.J.)》1992,11(1):79-85
This exploratory study sought to determine whether selected religion-related factors differentiated between 86 patients with
obsessive compulsive disorder (OCD), 73 patients with panic disorder, and 292 patients with other psychiatric (non-anxiety)
disorders. A standard history questionnaire was used to obtain information from patients concerning religion of origin, involvement
in religious activities, religious conflict, and perceived religiousness of parents. It was found that the percentage of patients
who reported experiencing religious conflict was significantly higher for the OCD group than for the other two groups. Other
findings suggested associations between Catholicism and OCD and between Protestantism and panic disorder, but further research
is needed to clarify these relationships.
This article is based on a paper presented at the 98th annual convention of the American Psychological Association, Boston,
August 1990. 相似文献