Table 3. Relationships among the results of the DDST, Binet Intelligence Scale, and Bayley Scales of Infant Development

	Binet IQ	≥92	76–91	≤75
DDST	Bayley DQ	≥90	70–89	≤69
Normal		20	0	0
Questionable		1	5	2
Abnormal		0	1	1

DDST, Denver Developmental Screening Test; IQ, intelligence quotient; DQ, developmental quotient.