9.3 Suitability of D-score metric

The D-score metric represents child development very well. Items from the most widely used instruments (such as Bayley, ASQ, Denver, etc) are included. Also, the child development domains are well represented over the entire scale. However, the D-score may not be well suited to screen for domain specific problems. For that purpose, other metrics may be used or developed that are specifically targeted to detect domain specific problems.