Key points are not available for this paper at this time.
Rand D. Conger, John A. McCarty, Raymond K. Yang, Benjamin B. Lahey, Robert L. Burgess, Mother's Age as a Predictor of Observed Maternal Behavior in Three Independent Samples of Families, Journal of Marriage and Family, Vol. 46, No. 2 (May, 1984), pp. 411-424
Conger et al. (Tue,) studied this question.