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Longitudinal Dynamics of Substance Use and Psychiatric Symptoms in Count Data with Zero Inflation

Ferrer, Emilio; Conger, Rand D.; Robins, Richard W.

Multivariate behavioral research. Volume 51:Issue 2/3 (2016); pp 279-295 -- Routledge, Taylor and Francis Group

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  • Title:
    Longitudinal Dynamics of Substance Use and Psychiatric Symptoms in Count Data with Zero Inflation
  • Author: Ferrer, Emilio;
    Conger, Rand D.;
    Robins, Richard W.
  • Found In: Multivariate behavioral research. Volume 51:Issue 2/3 (2016); pp 279-295
  • Journal Title: Multivariate behavioral research
  • Subjects: Psychology, Experimental--Periodicals; Psychometrics--Periodicals; Periodicals; Psychology, Experimental; Psychometrics; Longitudinal data analysis--substance use--categorical outcome analyses; Dewey: 150.15195
  • Rights: Licensed
  • Publication Details: Routledge, Taylor and Francis Group
  • Abstract: ABSTRACT:

    We examine the dynamics of substance use and psychiatric symptoms from childhood to adolescence using a longitudinal study of Mexican-origin families ( N = 674). We present a longitudinal model capturing the trajectories of substance use and psychiatric symptoms (depression, conduct disorder), as well as the interrelations between these trajectories over time. Such a model is an extension of latent change score models designed to account for the occurrence of psychiatric symptoms while also accommodating a large amount of zeros for nonoccurrence and characterizing the changes over time in the count data. We compare this model with a more traditional approach based on a log transformation of the data. We describe differences between these approaches and highlight the benefits of using the two-part model when the data include a large amount of zeros for nonoccurrence of the behavior.


  • Identifier: System Number: ETOCvdc_100033393891.0x000001; Journal ISSN: 0027-3171; doi/10.1080/00273171.2016.1144501
  • Publication Date: 2016
  • Physical Description: Electronic
  • Shelfmark(s): 5983.300000
  • UIN: ETOCvdc_100033393891.0x000001

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