Bias in regression analysis based on a stratified sample, illustrated by examples from an analysis of the relation between a psychological dementia score, atrophy measured by ct scan of the brain and certain external variables - Jorgensen, Merete; Mikkelsen, Sigurd (Denmark : Universidad of Copenhagen, Statistical Research Unit., 1988)
Keywords: CEREBRO; METODOS ESTADISTICOS; ANALISIS DE REGRESION; ESTADISTICA VITAL