全文获取类型
收费全文 | 856篇 |
免费 | 59篇 |
国内免费 | 2篇 |
专业分类
917篇 |
出版年
2023年 | 6篇 |
2022年 | 9篇 |
2021年 | 14篇 |
2020年 | 21篇 |
2019年 | 27篇 |
2018年 | 16篇 |
2017年 | 45篇 |
2016年 | 34篇 |
2015年 | 28篇 |
2014年 | 26篇 |
2013年 | 125篇 |
2012年 | 36篇 |
2011年 | 22篇 |
2010年 | 11篇 |
2009年 | 26篇 |
2008年 | 17篇 |
2007年 | 32篇 |
2006年 | 31篇 |
2005年 | 27篇 |
2004年 | 27篇 |
2003年 | 16篇 |
2002年 | 21篇 |
2001年 | 24篇 |
2000年 | 20篇 |
1999年 | 13篇 |
1998年 | 14篇 |
1997年 | 11篇 |
1996年 | 15篇 |
1995年 | 14篇 |
1993年 | 8篇 |
1991年 | 10篇 |
1990年 | 15篇 |
1988年 | 7篇 |
1986年 | 8篇 |
1984年 | 8篇 |
1981年 | 8篇 |
1980年 | 6篇 |
1979年 | 7篇 |
1977年 | 5篇 |
1976年 | 6篇 |
1975年 | 8篇 |
1974年 | 11篇 |
1973年 | 5篇 |
1972年 | 6篇 |
1971年 | 5篇 |
1970年 | 9篇 |
1969年 | 5篇 |
1968年 | 8篇 |
1967年 | 5篇 |
1966年 | 5篇 |
排序方式: 共有917条查询结果,搜索用时 15 毫秒
161.
162.
The purpose of this investigation was to assess the reliability and validity of eight developmental asset measures among a stratified, random sample (N = 540) of college students to guide health promotion efforts. The sample was randomly split to produce exploratory and confirmatory samples for factor analysis using principal axis factoring and varimax rotation and structural equation modeling techniques. Items were retained on factors if they had high loadings greater than .40 and were not complex. Concurrent validity was examined among substance use (including alcohol and tobacco) and sexual risk-taking variables. Exploratory and confirmatory samples did not differ on demographics. Parallel analysis confirmed the eight theorized constructs. Exploratory factor loadings were greater than .40. Concurrently, validity analyses were in the predicted direction. Cronbach alphas were .70 or greater with the exception of the Future Aspirations asset. Preliminary analyses support the reliability and validity of measuring developmental assets among emerging adults. Implications and potential uses are discussed. 相似文献
163.
Bridie Scott-Parker Barry Watson Mark J. King 《Transportation Research Part F: Traffic Psychology and Behaviour》2009,12(6):470-482
Young people aged 17–24 years are at high risk of being killed in road crashes around the world. Road safety interventions consider some influences upon young driver behaviour; for example, imposing passenger restrictions on young novice drivers indirectly minimises the potential negative social influences of peers as passengers. To change young driver risky behaviour, the multitude of psychosocial influences upon its initiation and maintenance must be identified. A study questionnaire was developed to investigate the relationships between risky driving and Akers’ social learning theory, social identity theory, and thrill seeking variables. The questionnaire was completed by 165 participants (105 women, 60 men) residing in south-east Queensland, Australia. The sociodemographic variables of age, gender, and exposure explained 19% of the variance in self-reported risky driving behaviour, whilst Akers’ social learning variables explained an additional 42%. Thrill seeking and social identity variables did not explain any significant additional variance. Significant predictors of risky driving included imitation of the driving behaviours of, and anticipated rewards and punishments administered by, parents and peers. Road safety policy that directly considers and incorporates these factors in their design, implementation, and enforcement of young driver road safety interventions should prove more efficacious than current approaches. 相似文献
164.
Matthew King 《The Southern journal of philosophy》2007,45(3):395-412
I propose that an ill‐appreciated contrast between the examples Socrates gives Meno, to show him how he ought to philosophize, is the key to understanding the Meno. I contend that Socrates prefers his definitions of shape to his account of color because the former are concerned with what shape is, while the latter is concerned with how color comes to be. This contrast suggests that Plato intends an analogous contrast between the (properly philosophical) way of inquiry that leads to Socrates' definition of knowledge as “true belief tied down with an account” and the (not properly philosophical) way of inquiry that leads to Socrates' account of how knowledge comes to be, that is, the “theory of recollection.” 相似文献
165.
Kerr DC Washburn JJ Feingold A Kramer AC Ivey AZ King CA 《Journal of abnormal child psychology》2007,35(5):817-830
The consequences of aggression on problem course and suicide risk were examined in 270 acutely suicidal adolescents (ages 12-17 years; 184 girls). Participants were assessed during psychiatric hospitalization (T1), 6-months post-hospitalization (T2), and 15 or more months post-hospitalization (T3). Study variables included self- and parent-reported aggression; self-reported internalizing symptoms, suicidal ideation, suicide attempt, and adverse events; and clinician-rated suicidal behavior. Aggression was not directly related to suicide attempt concurrently or prospectively. However, among more aggressive youth, internalizing symptoms were more predictive of T3 suicide attempt than among less aggressive youth. T1 aggression predicted aggressive incidents and the likelihood of incarceration prior to T3. Two-level hierarchical linear modeling indicated that self-reported aggression and internalizing problems were linked in terms of severity and rates of decline over time. Overall, parent-reported aggression was negatively associated with suicidal ideation. Findings highlight (a) the continuity and consequences of aggression, (b) a possible role of aggression in worsening suicide risk factors and potentiating suicide attempt, and (c) the importance of ongoing research on subtypes of suicidal adolescents. 相似文献
166.
167.
Sensorimotor prediction and memory in object manipulation. 总被引:5,自引:0,他引:5
J R Flanagan S King D M Wolpert R S Johansson 《Revue canadienne de psychologie expérimentale》2001,55(2):87-95
When people lift objects of different size but equal weight, they initially employ too much force for the large object and too little force for the small object. However, over repeated lifts of the two objects, they learn to suppress the size-weight association used to estimate force requirements and appropriately scale their lifting forces to the true and equal weights of the objects. Thus, sensorimotor memory from previous lifts comes to dominate visual size information in terms of force prediction. Here we ask whether this sensorimotor memory is transient, preserved only long enough to perform the task, or more stable. After completing an initial lift series in which they lifted equally weighted large and small objects in alternation, participants then repeated the lift series after delays of 15 minutes or 24 hours. In both cases, participants retained information about the weights of the objects and used this information to predict the appropriate fingertip forces. This preserved sensorimotor memory suggests that participants acquired internal models of the size-weight stimuli that could be used for later prediction. 相似文献
168.
169.
To explore and to clarify the discriminant validity of the sex role egalitarianism construct, the Sex-Role Egalitarianism Scale (SRES) was administered in conjunction with the Attitudes Toward Women Scale (AWS) and eight personality trait measures to 108 individuals. Results indicated a hypothesized curvilinear relationship between scores on the SRES and the AWS. When personality traits were individually regressed on SRES and AWS, SRES scores uniquely accounted for variance in achievement locus of control, and AWS scores uniquely accounted for variance in need for autonomy and need for succorance. Findings were supportive of the viability of sex role egalitarianism as an attitudinal dimension having meaning beyond that of a traditional — feminist dimension. 相似文献
170.
Initial identification discriminations between two sizes and between two slants produced better overall performances on subsequent size and slant same-different discriminations, respectively. This size- and slant-specific transfer was due to an improvement on only the different pairs. Time-duration identification discriminations with the identical stimuli and response assignments improved neither overall same-different performances nor performances on different pairs. A good performance on different pairs relative to same pairs should indicate a low perceived similarity. The literature indicates that A-X and B-Y pairings produce a positive transfer on an A-versus-B discrimination when X and Y are relatively low in similarity, and also indicates that a low perceived (not physical) similarity improves discrimination learning. An increase in salience should have also improved performance on the same pairs. The conclusion: the initial discriminations decreased the perceived similarity of parts (size or slant). This decrease resembles perceptual contrast. A discrimination between two parts also seems to increase the extent to which each part is apprehended as a separate group. Therefore, the conclusion accords with the position that two groups are associated with contrast, including for visibility. 相似文献