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201.
Show‐Li Jan Gwowen Shieh 《The British journal of mathematical and statistical psychology》2014,67(1):72-93
For one‐way fixed effects ANOVA, it is well known that the conventional F test of the equality of means is not robust to unequal variances, and numerous methods have been proposed for dealing with heteroscedasticity. On the basis of extensive empirical evidence of Type I error control and power performance, Welch's procedure is frequently recommended as the major alternative to the ANOVA F test under variance heterogeneity. To enhance its practical usefulness, this paper considers an important aspect of Welch's method in determining the sample size necessary to achieve a given power. Simulation studies are conducted to compare two approximate power functions of Welch's test for their accuracy in sample size calculations over a wide variety of model configurations with heteroscedastic structures. The numerical investigations show that Levy's (1978a) approach is clearly more accurate than the formula of Luh and Guo (2011) for the range of model specifications considered here. Accordingly, computer programs are provided to implement the technique recommended by Levy for power calculation and sample size determination within the context of the one‐way heteroscedastic ANOVA model. 相似文献
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203.
以青少年学业情绪问卷为基础,结合物理学科特点对问卷项目进行修改,修订中学生物理学业情绪问卷.以314名初二到高二学生为被试进行预测,通过验证性因素分析对问卷项目进行调整,最终问卷包括67个项目.经检验问卷的内部一致性信度、分半信度和效标效度符合测量学的要求.在此基础上,选用728名初二到高三学生为被试.结果发现:(1)总体来看,男生,尤其是来自重点中学的男生,其积极物理学业情绪要高于女生,而女生的消极物理学业情绪要高于男生;(2)重点中学的初中生的积极低唤醒物理学业情绪得分显著高于高中生,且重点中学的初中生的消极低唤醒物理学业情绪得分显著低于高中生,而普通中学则正好相反;(3)在物理学业情绪中,积极高唤醒和积极低唤醒的所有因子与物理学业成就皆呈显著正相关,而消极高唤醒(仅羞愧)和消极低唤醒(厌倦、无助、心烦-疲乏)与物理学业成就呈显著负相关. 相似文献
204.
The résumé is the most commonly used selection tool for organisations. Past studies have demonstrated that recruiter hiring recommendations can be predicted based on the content of applicant résumés. However, the mechanisms underlying the links between résumé contents and hiring recommendations remain unclear. The present study extends previous research by examining the mediating roles of recruiters' multi‐faceted fit perceptions in a field setting. Data were collected from 216 organisational recruiters who participated in campus recruitment at seven universities in Taiwan. The results showed that applicant work experience and educational background increased recruiter hiring recommendations through recruiter perceived person–job (P–J) fit. In addition, applicant work experience predicted recruiter perceived person–organisation (P–O) fit, which in turn enhanced recruiter hiring recommendations. 相似文献
205.
In‐Sue Oh Kibeom Lee Michael C. Ashton Reinout E. de Vries 《Psychologie appliquee》2011,60(3):496-516
Honesty‐Humility, one of the six major personality dimensions included in the HEXACO model of personality structure, has previously been found to show negative correlations with workplace deviance. In this study, we hypothesised that Extraversion would moderate the relationship between Honesty‐Humility and workplace deviance. In particular, we posited that the relation between Honesty‐Humility and workplace deviance would be stronger among employees who are high on Extraversion than among those low on Extraversion. The hypothesis was tested using three different samples across Australia, Canada, and the Netherlands. It was found in two of the three samples that high levels of Extraversion did indeed amplify the relationship between (low) Honesty‐Humility and workplace deviance. Results suggest a potentially important role for multiplicative effects of personality variables on workplace criteria. 相似文献
206.
Tatiana Glebova Suzanne Bartle‐Haring Rashmi Gangamma Michael Knerr Robin Ostrom Delaney Kevin Meyer Tiffany McDowell Katie Adkins Erika Grafsky 《Journal of Family Therapy》2011,33(1):42-65
Therapeutic alliance research in couple therapy using multiple perspectives and longitudinal data has been sparse. This study used structural equation modelling to explore relationships between changes in alliance and in progress from clients' and therapists' perspective in a fairly large sample of couples (N=195) during the initial stage of therapy at an on‐campus training clinic. Self‐rated alliance was measured after sessions 2 through 4 with the Working Alliance Inventory. There was very little change in alliance over the early sessions of therapy, and changes in alliance did not always account for changes in relationship satisfaction. Husbands' perceptions of satisfaction and alliance seem to play an important role in the dynamics of the therapeutic process. Findings suggest a reciprocal relationship between perceptions of alliance and progress in therapy when combining perceptions of therapists and couple clients. Clinical implications and future research are discussed. 相似文献
207.
Literature in the area of social networks indicates that increases in perceived social network attitudinal heterogeneity generate increased openness to attitude change. Recent evidence in the area of morality, however, shows that morally based attitudes are particularly resistant to persuasion and can result in the rejection of disagreeing others. Positing that considering morality would reduce network influence, an experiment varied moral cues presented along with a non‐network persuasive message while holding the actual content constant. Results demonstrate that morality and network composition interact to predict persuasion, such that when people are not cued to consider morality increased network heterogeneity predicts increased persuasion, but when identical messages are presented in a way that invokes morality the impact of network heterogeneity disappears or even reverses marginally. This interactive effect was replicated in two very different political issues: gay adoption and nationalized healthcare. Implications for persuasion by morally motivated sources independent of the effects of specific moral arguments are discussed. 相似文献
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209.
Melody Manchi Chao Sumie Okazaki Ying‐yi Hong 《Social and Personality Psychology Compass》2011,5(5):263-274
Multicultural competence refers to the ability to appreciate diversity and to work effectively in multicultural settings. In this increasingly diverse and globalized world, being culturally competent has become more important than ever. Integrating research in counseling and organizational studies, the authors examine the conceptualization of cultural competence across disciplinary boundaries. The authors review pertinent research to dissect the major challenges posted to the quest for cultural competence and conclude that training programs that overemphasize knowing the different ‘Others’ may promote a false sense of competence, and even fuel intergroup hostility and reactance. To enhance cultural competence, we recommend shifting the emphasis in competence trainings from knowing the different ‘Others’ to enhancing critical self‐awareness. 相似文献
210.
Basham C Denneson LM Millet L Shen X Duckart J Dobscha SK 《Suicide & life-threatening behavior》2011,41(3):287-296
Oregon Violent Death Reporting System data were linked with Veterans Affairs (VA) administrative data to identify and describe veterans who completed suicide in Oregon from 2000 to 2005 (n = 968), and to describe their VA health care utilization in the year prior to death. Twenty-two percent had received health care in the VA system. Of these, 57% did not have mental health diagnoses and 58% had not seen mental health professionals. A larger proportion of those who accessed care were VA-enrolled and received service-connected disability benefits. Fifty-five veterans were hospitalized during the year prior to death. Of these, 33% completed suicide within 30 days of a hospitalization. Further development of suicide prevention strategies for veterans in the community, including general medical treatment settings, is indicated. 相似文献