全文获取类型
收费全文 | 4224篇 |
免费 | 175篇 |
专业分类
4399篇 |
出版年
2022年 | 22篇 |
2021年 | 26篇 |
2020年 | 66篇 |
2019年 | 54篇 |
2018年 | 93篇 |
2017年 | 106篇 |
2016年 | 158篇 |
2015年 | 69篇 |
2014年 | 117篇 |
2013年 | 553篇 |
2012年 | 162篇 |
2011年 | 184篇 |
2010年 | 100篇 |
2009年 | 141篇 |
2008年 | 176篇 |
2007年 | 176篇 |
2006年 | 192篇 |
2005年 | 117篇 |
2004年 | 159篇 |
2003年 | 138篇 |
2002年 | 137篇 |
2001年 | 68篇 |
2000年 | 65篇 |
1999年 | 59篇 |
1998年 | 69篇 |
1997年 | 63篇 |
1996年 | 56篇 |
1995年 | 51篇 |
1994年 | 72篇 |
1993年 | 51篇 |
1992年 | 42篇 |
1991年 | 38篇 |
1990年 | 33篇 |
1989年 | 36篇 |
1988年 | 40篇 |
1987年 | 44篇 |
1986年 | 32篇 |
1985年 | 46篇 |
1984年 | 42篇 |
1983年 | 35篇 |
1982年 | 56篇 |
1981年 | 42篇 |
1980年 | 37篇 |
1979年 | 34篇 |
1978年 | 45篇 |
1977年 | 48篇 |
1976年 | 49篇 |
1975年 | 41篇 |
1974年 | 34篇 |
1973年 | 27篇 |
排序方式: 共有4399条查询结果,搜索用时 15 毫秒
131.
Stephen J. Murgatroyd 《British Journal of Guidance & Counselling》1976,4(1):98-104
School counsellors are often presented with information about pupils from a third party - a parent, another pupil, a member of the canteen staff a social worker, or a member of the teaching staff - with the expectation that the counsellor is in a position to take 'necessary' or 'appropriate' action. One particular case is used to illustrate some of the difficulties involved in acting upon third-party information. 相似文献
132.
133.
Balsam PD Fairhurst S Gallistel CR 《Journal of experimental psychology. Animal behavior processes》2006,32(3):284-294
The effects of altering the contingency between the conditioned stimulus (CS) and the unconditioned stimulus (US) on the acquisition of autoshaped responding was investigated by changing the frequency of unsignaled USs during the intertrial interval. The addition of the unsignaled USs had an effect on acquisition speed comparable with that of massing trials. The effects of these manipulations can be understood in terms of their effect on the amount of information (number of bits) that the average CS conveys to the subject about the timing of the next US. The number of reinforced CSs prior to acquisition is inversely related to the information content of the CS. 相似文献
134.
Episodic processes in emotional labor: perceptions of affective delivery and regulation strategies 总被引:1,自引:0,他引:1
This study examined emotional labor processes from a within-person, episodic framework. The authors hypothesized that the influence of negative emotions on affective delivery would be lessened by regulation strategies for supervisor perceptions but not self-perceptions. In addition, difficulty maintaining display rules was hypothesized to mediate the relation between negative emotions and self-perceptions of affective delivery. Finally, the influence of surface acting strategies on these processes as well as correlations with individual differences was investigated. Hypotheses were tested using ecological momentary assessment of a sample of cheerleading instructors. Results suggest that surface actors can regulate emotions effectively on an episode-to-episode basis but find the episode more difficult. In addition, surface actors exhibit more general tendencies to devalue themselves and experience fewer positive emotions. 相似文献
135.
Examined a risk-resilience model of peer rejection and attention-deficit/hyperactivity disorder (ADHD) in a 5-year longitudinal study of 209 ethnically and socioeconomically diverse girls aged 6-13 at baseline and 11-18 at follow-up. Risk factors were childhood ADHD diagnosis and peer rejection; hypothesized protective factors were childhood measures of self-perceived scholastic competence, engagement in goal-directed play when alone, and popularity with adults. Adolescent criterion measures were multi-informant composites of externalizing and internalizing behavior plus indicators of academic achievement, eating pathology, and substance use. ADHD and peer rejection predicted risk for all criterion measures except for substance use, which was predicted by ADHD only. ADHD and peer rejection predicted lower adolescent academic achievement controlling for childhood achievement, but they did not predict adolescent externalizing and internalizing behavior after controlling for baseline levels of these constructs. Regarding buffers, self-perceived scholastic competence in childhood (with control of academic achievement) predicted resilient adolescent functioning. Contrary to hypothesis, goal-directed play in childhood was associated with poor adolescent outcomes. Buffers were not found to have differential effectiveness among girls with ADHD relative to comparison girls. 相似文献
136.
Monahan J Steadman HJ Appelbaum PS Grisso T Mulvey EP Roth LH Robbins PC Banks S Silver E 《Behavioral sciences & the law》2006,24(6):721-730
The Classification of Violence Risk (COVR) is an interactive software program designed to estimate the risk that a person hospitalized for mental disorder will be violent to others. The software leads the evaluator through a chart review and a brief interview with the patient. At the end of this interview, the software generates a report that contains a statistically valid estimate of the patient's violence risk-ranging from a 1% to a 76% likelihood of violence-including the confidence interval for that estimate, and a list of the risk factors that the program took into account to produce the estimate. In this article, the development of the COVR software is described and several issues that arise in its administration are discussed. 相似文献
137.
The major aim of this study was to examine the longitudinal association between adolescent smoking involvement and self-reported psychological and physical outcomes in young adulthood. Participants included 333 African Americans and 329 Puerto Ricans who were surveyed in 1990 in their New York City schools and interviewed in 1995 and 2000-2001, primarily in their homes. The psychological outcomes included ego integration, symptoms of depression, anxiety, and interpersonal difficulty. The physical health measures included a general health rating, number of illnesses, and symptoms of ill health. Also, three scales measured problems due to alcohol, marijuana, and other illicit drug use. Smoking involvement varied by age, sex, and ethnicity but not by socioeconomic status nor by late adolescent parental status. Analysis showed that the relationships between adolescent smoking involvement and psychological and physical health problems in young adulthood remained significant even with control on demographic factors, earlier levels of the outcome variables, and marijuana use. The relationships between smoking behavior and problems with alcohol, marijuana and other illicit drug use were particularly strong. Thus, adolescent smoking seems to have a wide range of clinical implications for young adulthood. 相似文献
138.
Nonhuman animals, like humans, appear sensitive to the structure of the elements of sequences, perhaps even when the structure relates nonadjacent elements. In the present study, we examined the contribution of chunking, rule learning, and item memory when rats learned serial patterns composed of two interleaved subpatterns. In one group, the first interleaved subpattern was a formally simple sequence, whereas in two other groups the first subpattern was formally more complex, containing 2 or 4 violation elements, respectively. In all groups, the second interleaved subpattern encountered was formally simple. Evidence from the study suggests that rats chunked their interleaved patterns into component subpatterns, that is, they cognitively sorted pattern elements to form chunks based on nonadjacent structural relationships that can be characterized as rules. They also learned interitem associations via traditional discrimination learning to use adjacent elements as compound or configural cues for later events in the sequence. Thus, the evidence suggests that rats used chunking, rule learning, and interitem association learning concurrently to master these complex patterns. 相似文献
139.
The authors examined measurement bias in the Hogan Personality Inventory by investigating differential item functioning (DIF) across sex and two racial groups (Caucasian and Black). The sample consisted of 1,579 Caucasians (1,023 men, 556 women) and 523 Blacks (321 men, 202 women) who were applying for entry-level, unskilled jobs in factories. Although the group mean differences were trivial, more than a third of the items showed DIF by sex (38.4%) and by race (37.3%). A content analysis of potentially biased items indicated that the themes of items displaying DIF were slightly more cohesive for sex than for race. The authors discuss possible explanations for differing clustering tendencies of items displaying DIF and some practical and theoretical implications of DIF in the development and interpretation of personality inventories. 相似文献
140.
Our reduced ability to correctly report two sequentially presented targets is seen in the robust effect known as the attentional
blink (AB; Raymond, Shapiro, & Arnell, 1992). One recent report (Olivers & Nieuwenhuis, 2005) strikingly reveals the AB to
be virtually abolished when non-task-demanding music occurs in the background. The authors suggest that a diffuse attentional
state is the mediating factor. Here, we seek to broaden the finding’s generality by determining if task-irrelevant visual
motion and flicker also attenuate the AB. In our experiments, the AB task was presented together with a background field of
moving dots that could moveaway from ortoward the central AB task, or flicker. In the control condition, the dots remained static. The AB was attenuated—though to different
degrees—in all experimental conditions, but not in the static condition. Our findings add to the generality of the previous
conclusions, and we emphasize an account based on the overallocation of attention. 相似文献