首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2045篇
  免费   117篇
  2162篇
  2023年   13篇
  2022年   18篇
  2021年   22篇
  2020年   48篇
  2019年   61篇
  2018年   88篇
  2017年   91篇
  2016年   74篇
  2015年   44篇
  2014年   72篇
  2013年   199篇
  2012年   102篇
  2011年   98篇
  2010年   55篇
  2009年   62篇
  2008年   80篇
  2007年   91篇
  2006年   61篇
  2005年   55篇
  2004年   58篇
  2003年   66篇
  2002年   78篇
  2001年   43篇
  2000年   36篇
  1999年   35篇
  1998年   33篇
  1997年   22篇
  1996年   25篇
  1995年   19篇
  1994年   29篇
  1993年   16篇
  1992年   28篇
  1991年   17篇
  1990年   22篇
  1989年   16篇
  1988年   17篇
  1987年   17篇
  1986年   17篇
  1985年   10篇
  1984年   22篇
  1983年   10篇
  1982年   11篇
  1981年   10篇
  1980年   14篇
  1979年   15篇
  1978年   22篇
  1976年   20篇
  1974年   12篇
  1969年   9篇
  1966年   11篇
排序方式: 共有2162条查询结果,搜索用时 15 毫秒
941.
We expected a positive boosting effect of a performance-based extrinsic reward on motivation and performance for those with higher control-related resources (i.e., perceived task control and trait self-control) and a positive compensating effect for those who lacked these resources. Study 1 supported compensation. Those with lower resources experienced a beneficial effect of reward on motivation and performance (i.e., compared to no reward). In Study 2, coping was examined as a mechanism. Again, reward compensated for lower resources, enhancing motivation, and performance due to enhanced coping. For those with higher resources, reward boosted motivation and performance due to coping. Thus, the interactive effects of reward and resources are paradoxical: higher resources can maximize the utility of a reward, but reward can also compensate for low resources.  相似文献   
942.
Three studies were designed to measure various indicators of the reliability and validity of the Preschool Behavior Screening System (PBSS) as a screening instrument for emotional and behavioral disorder risk status of children of preschool age. Study 1 and Study 2 served to establish evidence for content validity. Study 3 investigated one type of reliability evidence (i.e., internal consistency) and four types of validity evidence (i.e., internal structure validity, validity evidence based on external relations, concurrent validity, and cross-informant agreement).Teachers and parents of children (N = 113) enrolled in preschool and childcare programs completed Phase 1 and Phase 2 of the PBSS and the Behavior Assessment System for Children (BASC-2). Cross-informant agreement between parent and teacher ratings on the PBSS was generally moderate, and internal consistency was high. PBSS Phase 1 and PBSS Phase 2 were correlated in the expected directions, and sensitivity and negative predictive value were high. Results suggest that the PBSS may yield psychometrically sound scores for helping states meet child-find requirements. Directions for future development of the PBSS are provided.  相似文献   
943.
This study looked at the recall of sexual and non‐sexual television advertisements embedded within programmes, with or without, sexual content. It was predicted that there would be a detrimental effect of sexual programme content, and a beneficial effect of sexual advertisement content on ability to recall advertisements. Further, when programme and advertisement content were congruous (i.e. both sexual), this also would hinder recall. Participants aged between 18 and 31 were placed in one of four conditions and were shown either ‘Sex and the City’ (sexual programme) or ‘Malcolm in the Middle’ (non‐sexual programme) with sexual or non‐sexual advertisements embedded in each. Participants were then asked to recall advertisement details from the advertisements. The results indicated that there was a main effect of programme type, demonstrating that sexual programme content hindered recall of advertisements. However, there was no main effect of the type of advertisements seen (sexual or non‐sexual) on recall, nor was there a negative effect on recall when programme and advertisement content were congruous. An interaction between advertisements and sex of participants showed that males recalled sexual advertisements better and females recalled non‐sexual advertisements better. Limitations of the study are considered. Copyright © 2007 John Wiley & Sons, Ltd.  相似文献   
944.
945.
The Community Readiness Model (CRM) is a change model that measures the readiness of communities/institutions to meet the needs of diverse clientele and to guide strategy development. This article presents model implementation with one long‐term care facility interested in enhancing their ability to serve gay, lesbian, bisexual, and transgender older adults.  相似文献   
946.
Prospective memory, defined as the ability to follow through on intended behavior, is believed to be subserved by a number of neuroanatomical substrates, but particularly dependent, at least in part, on the frontal lobes. Children with Attention-Deficit Hyperactivity Disorder (ADHD) traditionally have difficulty on tasks dependent on frontal lobe structures. The present study attempted to determine whether children with ADHD are impaired in prospective memory function. Two studies are described that use a new measure of time-based prospective memory, the CyberCruiser (Kerns, 2000), to compare children with ADHD to a control group consisting of participants who were matched in respect to age, gender, and IQ. The results document prospective memory deficits in ADHD. Prospective memory performance correlated significantly with clinical measures of ADHD as assessed by the Conners' Parent Rating Scale (Conners, 1990) Hyperactivity Index, but was unrelated to intellectual ability. Though psychometric measures of attention correlated with prospective memory performance, they did not account for the differences in prospective memory that were observed between the ADHD and control groups.  相似文献   
947.
Anxious and non-anxious mothers were compared on theoretically derived parenting and family environment variables (i.e., over-control, warmth, criticism, anxious modeling) using multiple informants and methods. Mother-child dyads completed questionnaires about parenting and were observed during an interactional task. Findings revealed that, after controlling for race and child anxiety, maternal anxiety was associated with less warmth and more anxious modeling based on maternal-report. However, maternal anxiety was not related to any parenting domain based on child-report or independent observer (IO) ratings. Findings are discussed in the context of the impact of maternal anxiety on parenting and suggest that child, rather than maternal, anxiety may have a greater influence on parental behavior.  相似文献   
948.
Sexual aggression perpetration is a public health epidemic, and burgeoning research aims to delineate risk factors for individuals who perpetrate completed rape. The current study investigated physical and psychological intimate partner violence (IPV) history, coercive condom use resistance (CUR), and heavy episodic drinking (HED) as prospective risk factors for rape perpetration. Young adult men (N = 430) ages 21–30 completed background measures as well as follow‐up assessments regarding rape events perpetrated over the course of 3 months. Negative binomial regression with log link function was utilized to examine whether these risk factors interacted to prospectively predict completed rape. There was a significant interaction between physical IPV and HED predicting completed rape; men with high HED and greater physical IPV histories perpetrated more completed rapes during follow‐up than men with low HED at the same level of physical IPV. Moreover, psychological IPV and coercive CUR interacted to predict completed rape such that men with high coercive CUR and greater psychological IPV histories perpetrated more completed rapes throughout the follow‐up period than men with low coercive CUR at the same level of psychological IPV. Findings suggest targets for intervention efforts and highlight the need to understand the topography of different forms of aggression perpetration.  相似文献   
949.
Infants respond preferentially to faces and face‐like stimuli from birth, but past research has typically presented faces in isolation or amongst an artificial array of competing objects. In the current study infants aged 3‐ to 12‐months viewed a series of complex visual scenes; half of the scenes contained a person, the other half did not. Infants rapidly detected and oriented to faces in scenes even when they were not visually salient. Although a clear developmental improvement was observed in face detection and interest, all infants displayed sensitivity to the presence of a person in a scene, by displaying eye movements that differed quantifiably across a range of measures when viewing scenes that either did or did not contain a person. We argue that infant's face detection capabilities are ostensibly “better” with naturalistic stimuli and artificial array presentations used in previous studies have underestimated performance.  相似文献   
950.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号