Browsing by Author "Chen, Xinguang"

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Full longitudinal mediation modeling analysis of HIV/AIDS knowledge, self-efficacy, and condom-use intention in youth

Chen, Ding-Geng (Din); Chen, Xinguang (University of Chicago Press, 2022)

OBJECTIVE : Methods that are more advanced than conventional mediation analysis are needed in social and behavioral health research to determine causal relationships and evaluate intervention effects and mechanisms. This ...
Medical marijuana laws and marijuana use among U.S. adolescents : evidence from Michigan youth risk behavior surveillance data

Chen, Xinguang; Yu, Bin; Stanton, Bonita; Cook, Robert L.; Chen, Ding-Geng (Din); Okafor, Chukwuemeka (Sage, 2018-03)

Research findings are inconsistent regarding a positive association between the passage of state medical marijuana laws (MML) and the adolescent access and the use of marijuana. We utilized a novel analytical approach to ...
Reconstructing and forecasting the COVID-19 epidemic in the United States using a 5-parameter logistic growth model

Chen, Ding-Geng (Din); Chen, Xinguang; Chen, Jenny K. (Springer, 2020-05)

BACKGROUND : Many studies have modeled and predicted the spread of COVID-19 (coronavirus disease 2019) in the U.S. using data that begins with the first reported cases. However, the shortage of testing services to detect ...

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