TVSEP junior researcher Mark Brooks presented his paper ‘PAPI is gone, but errors remain – Non-sampling errors in household surveys’ in the panel session ‘Methods, data and modelling’ on the second day of the annual German Development Economics Conference, which took place on the 17-18th of June. Due to technological advances in terms of data collection tools, household surveys in developing countries have transitioned from Paper and Pencil Interviews (PAPI) to Computer Assisted Personal Interviews (CAPI). CAPI is found to essentially eliminate item missing data, whereas measurement error, while being significantly reduced, remains.