2 papers
cs.CY2026
Psychometric Comparability of LLM-Based Digital Twins
Yufei Zhang, Zhihao Ma
Large language models (LLMs) act as digital twins for human respondents, yet their psychometric comparability remains uncertain. We propose a construct validity framework spanning…
stat.AP2026
Digital exclusion among middle-aged and older adults in China: age-period-cohort evidence from three national surveys, 2011-2022
Yufei Zhang, Zhihao Ma
Amid China's ageing and digital shift, digital exclusion among older adults poses an urgent challenge. To unpack this phenomenon, this study disentangles age, period, and cohort ef…