The per capital income of India from 1950 to 1990 is four times. This study is HomeResearch Methodology MCQsThe per capital income of India from 1950 to 1990 is four times. This study isResearch Methodology MCQsQ. The per capital income of India from 1950 to 1990 is four times. This study isSocialFactorialHorizontalLongitudinalAnswer: Longitudinal