全文获取类型
收费全文 | 2488篇 |
免费 | 87篇 |
国内免费 | 1篇 |
专业分类
2576篇 |
出版年
2023年 | 14篇 |
2021年 | 22篇 |
2020年 | 33篇 |
2019年 | 38篇 |
2018年 | 67篇 |
2017年 | 66篇 |
2016年 | 75篇 |
2015年 | 53篇 |
2014年 | 51篇 |
2013年 | 287篇 |
2012年 | 102篇 |
2011年 | 109篇 |
2010年 | 75篇 |
2009年 | 85篇 |
2008年 | 105篇 |
2007年 | 110篇 |
2006年 | 81篇 |
2005年 | 99篇 |
2004年 | 96篇 |
2003年 | 89篇 |
2002年 | 85篇 |
2001年 | 42篇 |
2000年 | 38篇 |
1999年 | 35篇 |
1998年 | 39篇 |
1997年 | 35篇 |
1996年 | 33篇 |
1995年 | 31篇 |
1994年 | 31篇 |
1993年 | 38篇 |
1992年 | 27篇 |
1991年 | 22篇 |
1990年 | 29篇 |
1989年 | 35篇 |
1988年 | 31篇 |
1987年 | 21篇 |
1986年 | 19篇 |
1985年 | 23篇 |
1984年 | 30篇 |
1983年 | 24篇 |
1982年 | 27篇 |
1981年 | 25篇 |
1980年 | 21篇 |
1979年 | 11篇 |
1978年 | 25篇 |
1977年 | 15篇 |
1976年 | 20篇 |
1975年 | 17篇 |
1973年 | 13篇 |
1972年 | 10篇 |
排序方式: 共有2576条查询结果,搜索用时 15 毫秒
1.
2.
Jacqueline M. Golding Patricia Gongla Arlene Brownell 《American journal of community psychology》1988,16(1):39-51
Survey respondents may inaccurately report mental health service utilization for motivational and cognitive reasons. There is little evidence on accuracy of self-reports of mental health service use, and this evidence suggests that respondents tend to underreport inpatient utilization. This study addressed the question of self-report accuracy by comparing survey data from a large probability sample to data from computerized records of publicly funded mental health services. Few inaccuracies in self-reporting were detected. However, despite the use of data bases that were unusually appropriate for verifying self-reports, several problems limited the feasibility of validation. Suggestions are offered for increasing the feasibility of validation in future studies. 相似文献
3.
Selma A. Lewis Jim Johnson Patricia Cohen Marc Garcia Carmen Noemi Velez 《Journal of abnormal child psychology》1988,16(4):459-471
Twenty-six suicide attempters, 9 to 18 years of age, were compared with 725 nonattempters on measures of school achievement, educational goals, socioeconomic status, and depression. As has been found in studies using clinical samples, suicide attempters in our communitybased sample had significantly lower school achievement than nonattempters. The relationship between attempted suicide and low school achievement seemed to be explained by the effects of depression. Lower-SES youth tended to be more likely to attempt suicide than higher-SES youths. However, SES appeared to have little effect on the relationship between attempted suicide and school achievement. Results also suggest that children of mothers with low educational goals for them may be more at risk for attempted suicide than youths whose mothers have higher educational goals for their children.This research was supported by the National Institute of Mental Health, Grant No. MH36971. 相似文献
4.
5.
We investigated the possible influence of common "demand characteristics" on the results on behavioral language laterality tasks. The demand characteristics were (1) whether Ss were or were not recruited for study according to their handedness, and (2) whether a detailed familial sinistrality inquiry was conducted before or after the tasks. Tasks were the Dichotic Consonant Vowel Task (DCVT) and the Bilateral Object Naming Latency Task (BONLT). Results showed no effect of demand characteristics on the BONLT. On the DCVT, however, prior inquiry regarding familial sinistrality was associated with significantly reduced right ear advantages (REAs). Interactions showed that the greatest reduction in REAs occurred in Ss with left-handedness in their families, who were asked about familial sinistrality prior to the tasks, who took the DCVT after the BONLT, and who were also recruited by handedness. Results, though generally reassuring regarding the robustness of the tasks against these sources of bias, raise some cautions for the DCVT. 相似文献
6.
Marianne Kastrup MD Inge Kemp Genefke MD Inge Lunde MD JØrgen Ortmann MD 《Contemporary Family Therapy》1988,10(4):280-287
This paper describes approaches taken at the International Rehabilitation and Research Centre in Copenhagen to helping torture victims and their families cope with the exposure to and aftermath of torture. 相似文献
7.
8.
Judith M. Lavelle Melbourne F. Hovell M. Patricia West Dennis R. Wahlgren 《Journal of applied behavior analysis》1992,25(4):885-892
The Colorado Occupant Protection Project (COPP) intervention provided police with brief instruction concerning the importance of citations for drivers' failure to use child safety seats and special coupons to accompany citations. Coupons were exchangeable by drivers for a safety seat and brief training in its use, plus a waiver of the $50 citation fine. Over 4.5 years of archival records were employed, using an ABA design and a comparison community to evaluate the program. Few tickets were issued for nonuse of safety seats during the 3-year baseline in either community. Citations for nonuse of safety seats increased to over 50 per month during the intervention period at the test site, whereas rates remained essentially zero at the comparison site. After the COPP intervention was removed at the intervention site, citation rates for nonuse of safety seats decreased to about 15 per month. Differences between intervention conditions and settings were statistically significant. During the intervention, officers were 44 times more likely to write citations than were controls. Results suggested that a behavioral program can increase police citation writing for child protection purposes. 相似文献
9.
Marianne LaFrance 《Psychology of women quarterly》1992,16(4):497-512
10.
When a judgment task evokes unbiased estimates (i.e. the errors in individual judgments are distributed randomly around the true value), mathematical aggregation of individual estimates, even by a simple arithmetic mean, often will outperform all group members. However, when a task evokes biased estimates, mathematical aggregation does not perform so well. In this study, simulated data were accumulated to specify the expected' accuracy of mathematical aggregation relative to the accuracy of observed judgment of individual group members under varying conditions of task bias. Three types of judgment tasks were employed: (1) single-estimate, holistic tasks, (2) multiple-estimate, ranking tasks, and (3) multi-cue, decomposed tasks. Findings indicated across all task types that a large percentage of judgment-making group estimates formed strictly by computing the arithmetic mean of individual estimates performed better than their most capable members when a judgment task evoked little or no bias, a result particularly pronounced for ranking tasks. When the task was more greatly bias-evoking, a large percentage of parallel groups performed more poorly than average (or median) members, again a pattern more starkly evident for ranking tasks. These results suggest that the extent to which a judgment task evokes bias in a population of prospective group members is an important explanatory variable deserving much greater attention in the study of group performance. For example, an assertion about the efficacy of a particular group intervention based on a reliable demonstration of group performance as accurate as the most capable members may be unfounded when a task evokes no bias, since the baseline standard under such conditions should be much higher. By selecting tasks and populations that jointly produced highly biased estimates, researchers can lower the performance floor enough to detect (with reasonably small samples of groups) experimental effects should they occur. 相似文献