Analyzing preventive trials with generalized additive models

C. Hendricks Brown

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Described a new class of nonparametric regression procedures called generalized additive models (Hastie and Tibshirani, 1991) for assessing intervention effects in mental health preventive field trials. Such models are often better than analysis of covariance models for examining intervention effects adjusted for one or more baseline characteristics and for assessing potential interactions between the intervention and baseline characteristics. Because of these advantages, generalized additive models are important tools analysts should consider in evaluating preventive field trials. We apply generalized additive models as well as more standard linear models to data from a preventive trial aimed at improving mental health and school performance outcomes through a universal intervention in first and second grades. Practical guidance is given to researchers regarding when generalized additive models would be beneficial.

Original languageEnglish
Pages (from-to)635-664
Number of pages30
JournalAmerican Journal of Community Psychology
Volume21
Issue number5
DOIs
StatePublished - Oct 1 1993

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Mental Health
Linear Models
Research Personnel
mental health
linear model
school grade
regression
interaction
school
performance

Keywords

  • additive models
  • analysis of covariance
  • nonlinearity
  • prevention research
  • statistical methods

ASJC Scopus subject areas

  • Social Sciences (miscellaneous)
  • Psychology(all)
  • Public Health, Environmental and Occupational Health

Cite this

Analyzing preventive trials with generalized additive models. / Brown, C. Hendricks.

In: American Journal of Community Psychology, Vol. 21, No. 5, 01.10.1993, p. 635-664.

Research output: Contribution to journalArticle

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