Optimal search strategies for identifying moderators and predictors of treatment effects in PubMed     

Marcia Tummers  Ralph van Hoorn  Charlotte Levering  Andrew Booth  Gert Jan van der Wilt  Wietske Kievit 《Health information and libraries journal》2019,36(4):318-340

  相似文献   

Spelling consistency affects reading in young Dutch readers with and without dyslexia     

Bosman AM  Vonk W  van Zwam M 《Annals of dyslexia》2006,56(2):271-300

Lexical-decision studies with experienced English and French readers have shown that visual-word identification is not only affected by pronunciation inconsistency of a word (i.e., multiple ways to pronounce a spelling body), but also by spelling inconsistency (i.e., multiple ways to spell a pronunciation rime). The aim of this study was to compare the reading behavior of young Dutch readers with dyslexia to the behavior of readers without dyslexia. All students participated in a lexical-decision task in which we presented pronunciation-consistent words and pseudowords. Half of the pronunciation-consistent stimuli were spelling consistent and the other half were spelling inconsistent. All three reader groups, that is, students with dyslexia, age-match students, and reading-match students, read spelling-consistent words faster than spelling-inconsistent words. Overall reading speed of students with dyslexia was similar to that of reading-match students, and was substantially slower than that of age-match students. The results suggest that reading in students with or without dyslexia is similarly affected by spelling inconsistency. Subtle qualitative differences emerged, however, with respect to pseudoword identification. The conclusion was that the findings were best interpreted in terms of a recurrent-feedback model.  相似文献   

Social Media Research: An Assessment of the Domain's Productivity and Intellectual Evolution     

Wietske van Osch  Constantinos K. Coursaris 《Communication monographs》2014,81(3):285-309

The purpose of this study is to conduct a bibliographic investigation and meta-analysis of the full body of social media scholarship produced over eight years, since the domain's emergence in 2004. A total of 610 journal and conference papers were carefully reviewed and subjected to bibliometric and meta-analysis techniques. A number of research questions pertaining to country, institutional, and individual productivity, as well as research design and data practices in the social media field, were proposed and answered. Our results reveal two main challenges faced by the field. First, the social media domain displays limited intellectual diversity in terms of productive and impactful actors—individual, institutions, and countries—as well as publications that have hitherto skewed the domain's focus in a limited direction. Second, the research design approaches and data practices characterizing the domain seem to reflect methodological singularity characterized by a strong tendency for cross-sectional, individual-level, survey or case-based studies. Furthermore, speculative and anecdotal evidence, based on personal opinions and armchair hypotheses, is extremely widespread and stand in the way of the domain's methodological and theoretical advancement. These challenges not only help to improve one's understanding of the identity and intellectual core of social media as a distinct scientific field but can also further prompt academic debate and careful (re)examination of the domain's scholarly practices and assumptions to ensure its future advancement in the most productive manner.  相似文献