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Differential Item Functioning (DIF) is traditionally used to identify different item performance patterns between intact groups, most commonly involving race or sex comparisons. This study advocates expanding the utility of DIF as a step in construct validation. Rather than grouping examinees based on cultural differences, the reference and focal groups are chosen from two extremes along a distinct cognitive dimension that is hypothesized to supplement the dominant latent trait being measured. Specifically, this study investigates DIF between proficient and non-proficient fourth- and seventh-grade writers on open-ended mathematics test items that require students to communicate about mathematics. It is suggested that the occurrence of DIF in this situation actually enhances, rather than detracts from, the construct validity of the test because, according to the National Council of Teachers of Mathematics (NCTM), mathematical communication is an important component of mathematical ability, the dominant construct being assessed. However, the presence of DIF influences the validity of inferences that can be made from test scores and suggests that two scores should be reported, one for general mathematical ability and one for mathematical communication. The fact that currently only one test score is reported, a simple composite of scores on multiple-choice and open-ended items, may lead to incorrect decisions being made about examinees. 相似文献
3.
北美地区区域十分辽阔,有着多种化和种族群体。无论在现代化的美国本土,还是在寒冷的阿拉斯加和加拿大,或是在荒漠、炎热和潮湿的北美区域,都有我们早期教育的课堂。早期教育渗透在拥挤的都市,同时也深入到了偏远条件艰苦的地方。北美地区的幼儿教育,是差别很大的概念。 相似文献
4.
Jessica Massonni Philippe Frasseto Denis Mareschal Natasha Z. Kirkham 《Mind, Brain, and Education》2020,14(3):303-316
Moving the field of Mind, Brain, and Education forward requires researchers and educators to reframe the boundaries of their own discipline in order to create knowledge that is both scientifically based, and of practical relevance for education. We believe that this could be done by co‐constructing research projects from the start. We present a case study of a noise‐reduction intervention in elementary classrooms, in which teachers and researchers worked together from the onset of study design. We examine the processes behind: (1) selecting research questions and measures, (2) planning interventions, (3) receiving ethical approval and funding, (4) recruiting schools, and (5) collecting data. At each step, our study provides suggestions for future collaborative efforts, keeping in mind broader theoretical and methodological implications. We believe that our concrete examples and suggestions will be useful for beginning and confirmed researchers, as well as teachers aiming to know more about research projects. 相似文献
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OBJECTIVE: The purpose of this paper is to present a newly developed measure of guardian support, the Needs-Based Assessment of Parental (Guardian) Support (NAPS), an empirical evaluation of that measure, and its comparison with another measure of guardian support. The theoretical model that underlies this measure applies humanistic theory and Maslow's hierarchy of needs to the understanding of guardian support. METHOD: The study employed a cross-sectional nonexperimental survey design using 183 nonoffending guardians who accompanied children presenting for a medical/forensic examination for sexual abuse. The NAPS and an existing measure of guardian support were administered during the hospital outpatient visit, and basic information concerning the child and abuse situations were gathered. RESULTS: The NAPS had robust psychometric properties and was culturally sensitive. Tests of specific hypotheses supported the construct validity of the measure and a conceptualization of guardian support as hierarchical, with four stages of support. CONCLUSIONS: The brevity and ease of administration of the NAPS for both the clinician and guardian suggest that it is a viable assessment tool. The strong support for the NAPS' underlying theoretical model suggests that the nonoffending guardians' available resources need to be considered when assessing guardian support. 相似文献
6.
Mariola Moeyaert Maaike Ugille John M. Ferron S. Natasha Beretvas Wim Van den Noortgate 《Journal of Experimental Education》2016,84(3):473-509
The impact of misspecifying covariance matrices at the second and third levels of the three-level model is evaluated. Results indicate that ignoring existing covariance has no effect on the treatment effect estimate. In addition, the between-case variance estimates are unbiased when covariance is either modeled or ignored. If the research interest lies in the between-study variance estimate, including at least 30 studies is warranted. Modeling covariance does not result in less biased between-study variance estimates as the between-study covariance estimate is biased. When the research interest lies in the between-case covariance, the model including covariance results in unbiased between-case variance estimates. The three-level model appears to be less appropriate for estimating between-study variance if fewer than 30 studies are included. 相似文献
7.
Natasha Delahunt-Smoleniec 《Journalism Practice》2020,14(7):847-862
ABSTRACT News media plays an influential role in shaping society’s understanding of mental illness and can promote perspectives ranging from those that promote help-seeking behaviour to stigmatised associations with attributes such as danger and violence. Stigma has been found to have significant negative impacts on people with psychosis. No existing studies have explored how young people with psychosis are represented in newspapers. Targeting this gap, this study analysed news articles relating to youth psychosis to determine the types of discourses used. We searched the ProQuest Australia and New Zealand Newsstream database (2011-2016) for Australian newspaper articles related to young people and psychosis. Qualitative analysis was used to identify content and these were arranged into key themes. The recurring themes evident in the 27 articles linked youth psychosis to illicit drug use, violence and professional infighting about treatment options, and thus promoted significantly stigmatised perspectives of youth psychosis. Acknowledgement of these stigmatised discourses is important for encouraging responsible media reporting and for understanding the social messages impacting on treatment and help-seeking by young people. We discuss the conflicted role of journalists in presenting information about mental illness and recommend development of a more solutions-focused approach to reporting in this area. 相似文献
8.
Kohlberg's (1966) hypothesis that the attainment of gender constancy motivates children to attend to gender norms was reevaluated by examining these links in relation to age. Ninety-four 3- to 7-year-old children were interviewed to assess whether and how constancy mediates age-related changes in gender-related beliefs. As expected, results indicated a general pattern of an increase in stereotype knowledge, the importance and positive evaluation of one's own gender category, and rigidity of beliefs between the ages of 3 and 5. Moreover, the stability phase, rather than full constancy, mediated some of these relations. After age 5, rigidity generally decreased with age, with relations primarily mediated by consistency. 相似文献
9.
Re-referral to child protective services: the influence of child, family, and case characteristics on risk status 总被引:2,自引:0,他引:2
INTRODUCTION: This study examines child, family, and case characteristics that impact rates of re-referral to Child Protective Services (CPS) using data on all closed CPS investigations for the state of Rhode Island between 2001 and 2004. METHOD: A longitudinal dataset of all referrals to CPS was created using state submissions to the National Child Abuse and Neglect Data System (NCANDS). After excluding children whose initial CPS investigation resulted in removal from the home, a Cox proportional hazards model was tested to examine factors impacting the likelihood of re-referral. RESULTS: Consistent with other research in this area, the initial 6-month period following case disposition is the period of greatest risk of re-referral. Approximately 13% of cases experienced a recurrent allegation during the first 6-month period; an additional 14% experienced a re-referral over the following 12-month period; 7% during the next 12-month period. Family poverty was the strongest predictor of re-referral, though a number of child and case characteristics were significantly related to recurrence. Cases that were substantiated at index were significantly less likely to result in a new allegation, though substantiated cases of physical abuse or those receiving post-investigation services were at higher risk. CONCLUSIONS: Children from families facing multiple stressors (e.g., low SES, parental substance abuse child disability) are at highest risk of re-referral to CPS and may benefit from the development of preventive services targeted immediately following case closings within CPS. 相似文献
10.
Tonia A. Dousay Natasha P. Trujillo 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(2):876-887
Existing research highlights conflicting results attempting to capture gender preferences with respect to unimodal versus multimodal designs in online learning. As online learning continues to expand, more research examining the role of gender in multimedia design holds considerable potential. However, the presence of multimedia in online learning contexts presents a more complex problem when taking into consideration the concept of learner interest. The current study sought to investigate gender differences in situational interest (SI) with respect to three different but related designs of an online, multimedia learning environment for continuing, professional education in emergency medical services. The content in these designs was identical, but applied different combinations of the redundancy and modality multimedia principles. A two-way analysis of variance was used to examine the types of SI by gender and type of multimedia design. While no significant difference or interaction effect was identified between gender and triggered SI, an interaction effect was observed for females and the different multimedia designs. Specifically, females reported a higher maintained SI when animation, narration and text were effectively combined. The findings of this study provide insight into best practices for instructional and media designers developing multimedia learning environments as well as future research implications. 相似文献