Salthouse TA. Attrition in longitudinal data is primarily selective with respect to level rather than rate of change. Journal of the international Neuropsychological Society. 2019;25(6):618. attrition_in_longitudinal_data_is_primarily_selective_with_respect_to_level_rather_than_rate_of_change-3.pdf196.35 KB Last updated on 11/26/2020