全部文献期刊会议图书|学者科研项目
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作者:Guibo Sun , Jianting Zhao , Chris Webster ...
来源:[J].Environment International(IF 6.248), 2020, Vol.138
摘要:Abstract(#br)Background(#br)We used the first metro system in a developing city as a natural experiment to investigate the causal inference in the new metro’s impact on modal shift and active travel.(#br)Material and methods(#br)The treatment group was formed by residents ...
作者:Yi Li , Guang Guo
来源:[J].Social Science & Medicine(IF 2.733), 2020
摘要:... This study takes advantage of a natural experiment of randomly assigned college roommates ( n = 1953) in the United States to investigate peer influence on marijuana use. The randomized roommate assignment eliminates selection bias. Compared to behaviors such as drinking and...
作者:Michael Rutter , Robert Kumsta , Wolff Schlotz ...
来源:[J].Journal of the American Academy of Child & Adolescent Psychiatry(IF 6.97), 2012, Vol.51 (8), pp.762-770
摘要:Objective(#br)To summarize the advantages and limitations of general population, high-risk and “natural experiment” longitudinal studies for studying psychological change. The English and Romanian Adoptees study is used as an example of a “natural experiment,” and det...
作者:Kandice A. Kapinos , Olga Yakusheva
来源:[J].Journal of Adolescent Health(IF 2.966), 2011, Vol.48 (1), pp.52-58
摘要:...(#br)Methods(#br)We exploited a natural experiment that takes place on most college campuses in the United States - randomized dormitory assignments. We estimated the effects of living in dormitories with varying physical environment characteristics on weight gain and relate...
作者:Kun Wang , Wenyi Xia , Anming Zhang ...
来源:[J].Transportation Research Part B(IF 2.944), 2018, Vol.114, pp.99-130
摘要:... Our empirical results from a rare natural experiment of HSR speed reduction in China show that HSR speed reduction raises both airline traffic and price, suggesting the dominance of travel-time effect. More importantly, consistent with the theoretical prediction, the HSR ...
作者:David Q. Rich
来源:[J].Environment International(IF 6.248), 2016
摘要:Abstract(#br)To address limitations of observational epidemiology studies of air pollution and health effects, including residual confounding by temporal and spatial factors, several studies have taken advantage of ‘natural experiments’, where an environmental policy or air ...
作者:H. Dickey , D. Ikenwilo , P. Norwood ...
来源:[J].Social Science & Medicine(IF 2.733), 2016, Vol.150, pp.117-127
摘要:... This provides a natural experiment that allows us to identify the effect of the policy on the demand for eye examinations. We also explore socio-economic differences in the response to the policy. The analysis is based on a sample from the British Household Panel Survey of ...
作者:Lukar E. Thornton , Kylie Ball , Karen E. Lamb ...
来源:[J].Health and Place(IF 2.419), 2016, Vol.39, pp.86-91
摘要:... Using a natural experiment study design (incorporating repeated cross-sectional data), we tested whether the development of a new McDonald's restaurant increased the frequency of consumption of McDonald's products amongst local residents in the suburbs of Tecoma (site of a ne...
作者:Julia Andrea Behrman
来源:[J].Social Science & Medicine(IF 2.733), 2015, Vol.127, pp.108-115
摘要:... Using data from the 2010 Malawi Demographic Health Survey and the 2011 Uganda AIDS Indicator Survey, the paper takes advantage of a natural experiment, the implementation of Universal Primary Education policies in the mid 1990s. An instrumented regression discontinuity approa...
作者:Andrea Torres , María Paula Díaz , Matthew J. Hayat ...
来源:[J].Preventive Medicine(IF 3.496), 2016
摘要:... This study was a natural experiment conducted between 2013 and 2015 in Bogota. Community members and park users living nearby three groups of parks were compared: Group 1 were parks implementing new Recreovias ( n = 3), Group 2 were control parks ( n = 3) without Recreovia...

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