Yavorsky, Kamp Dush, and Schoppe-Sullivan (2015) showed that survey measures overestimated housework and childcare, and underestimated paid work, compared to timediaries, particularly after the transition to parenthood. If these differences were uniform across men and women, more cost-effective survey measures would be adequate for examining the division of labor. However, if over and underestimations of housework, paid work, and childcare vary systematically by demographic, personality, or gender attitudes, studies that rely solely on survey estimates may be unreliable. Using survey and time-diary data from couples, we examine the demographic, personality, and gender predictors of the overestimation and underestimation of labor.