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  1. Article

    Open Access

    A Tutorial on Cognitive Diagnosis Modeling for Characterizing Mental Health Symptom Profiles Using Existing Item Responses

    In research applications, mental health problems such as alcohol-related problems and depression are commonly assessed and evaluated using scale scores or latent trait scores derived from factor analysis or it...

    Zhengqi Tan, Jimmy de la Torre, Wenchao Ma, David Huh in Prevention Science (2023)

  2. Article

    Open Access

    A Structural Equation Modeling Approach to Meta-analytic Mediation Analysis Using Individual Participant Data: Testing Protective Behavioral Strategies as a Mediator of Brief Motivational Intervention Effects on Alcohol-Related Problems

    This paper introduces a meta-analytic mediation analysis approach for individual participant data (IPD) from multiple studies. Mediation analysis evaluates whether the effectiveness of an intervention on healt...

    David Huh, **aoyin Li, Zhengyang Zhou, Scott T. Walters in Prevention Science (2022)

  3. Article

    Open Access

    Increases in social support co-occur with decreases in depressive symptoms and substance use problems among adults in permanent supportive housing: an 18-month longitudinal study

    Social support is a well-known protective factor against depressive symptoms and substance use problems, but very few studies have examined its protective effects among residents of permanent supportive housin...

    Zhengqi Tan, Eun-Young Mun, Uyen-Sa D. T. Nguyen, Scott T. Walters in BMC Psychology (2021)

  4. No Access

    Article

    Epidemiological Trends in Colorectal Cancer in China: An Ecological Study

    Due to the changes in lifestyle and dietary behaviors, the incidence of colorectal cancer (CRC) has been rapidly increasing in China.

    **zhou Zhu, Zhengqi Tan, Kelseanna Hollis-Hansen in Digestive Diseases and Sciences (2017)