TY - ELEC T1 - The impossibility of separating age, period and cohort effects. Conference presentation at NCRM Research Methods Festival, 2014 UR - https://www.youtube.com/watch?v=j0Cb5g-lx9g UR - https://www.youtube.com/watch?v=j0Cb5g-lx9g PY - 2015/03/31 AU - Bell AJ ED - PB - National Centre for Research Methods Y2 - 2024/12/22 ER -