Again, due to the relative youth of the programs, few objective measures exist to evaluate the success of the different training models. (sciencemag.org)
Parents choosing an early childhood education program can be overwhelmed when trying to find the highest quality program for their child, as there are few objective ways to identify quality. (nmaeyc.org)
It is always possible that several different situations could have left the traces we have, and we have very few objective criteria for distinguishing between their relative probability.» (religion-online.org)