Repeated measures: There's added value in modelling over time
نویسندگان
چکیده
منابع مشابه
The value-added of multidimensional poverty measures
We’ve been asked to produce a brief and informal summary of an exchange between ourselves and Martin Ravallion, who is currently Acting Chief Economist and Senior Vice President of the World Bank. All of us agree, as Ravallion pointed out, that poverty is multidimensional. Our exchange concerned whether our group’s efforts to incorporate multiple dimensions into the very definition of who is po...
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OBJECTIVE To investigate the added value of hippocampal atrophy rates over whole brain volume measurements on MRI in patients with Alzheimer disease (AD), patients with mild cognitive impairment (MCI), and controls. METHODS We included 64 patients with AD (67 +/- 9 years; F/M 38/26), 44 patients with MCI (71 +/- 6 years; 21/23), and 34 controls (67 +/- 9 years; 16/18). Two MR scans were perfo...
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We bring together time series data on trade, production, and input-use to compute the value added content of trade over the past four decades (1970-2009). Comparing the ratio of value added to gross exports, we measure changes in production fragmentation for the world as a whole, individual countries, and bilateral trade partners. For the world, the share of value added in trade falls by 10 to ...
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Raising domestic tax revenues is a priority for most sub-Saharan African countries. But the tax bases in most African countries are undermined by widespread tax avoidance and evasion. A new study from CMI supports the claim that improved knowledge about the tax system makes a difference in people’s willingness to pay tax. The study shows that exposure to Value-AddedTax (VAT) makes people take a...
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This design experiment addresses the question: How can second-grade students from low-SES schools attain the same levels of achievement as students from high-SES schools on standards-based social studies and content area literacy assessments? Students from two high-SES school districts were assessed in order to establish target levels of achievement. Two project-based units focused on state sta...
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ژورنال
عنوان ژورنال: Annals of Applied Biology
سال: 2019
ISSN: 0003-4746,1744-7348
DOI: 10.1111/aab.12534