A previously suggested relation among load, displacement, and remaining-ligament for stable crack growth was validated by examining literature data on three-point-bend and compact specimens. The resulting key curves were found to consist of one or more power-law segments, with the major portion of growth generally confined to one of the segments. The J-integral was then expressed in terms of the parameters of the power-law equations. The crack-growth-resistance curves and tearing moduli calculated in this manner agree well with those found using other far-field computational techniques.