Whose score on the Bayley Scales of Infant Development will BEST predict his later IQ?
A) 6-month-old Tyler's
B) 12-month-old Simon's
C) 24-month-old Joseph's
D) Tyler's, Simon's, and Joseph's scores will predict their later IQs equally well.

Question

Quizplus · Accepted Answer

The Bayley Scales of Infant Development are designed to assess the developmental functioning of very young children up to 3 years of age. The scores obtained on the Bayley Scales are useful for identifying developmental delays or disabilities and for tracking progress over time, but they are not a reliable predictor of later IQ. However, of the three options given, the score of the 24-month-old Joseph is the closest to the age when IQ tests are typically administered (between 6 and 16 years of age), and may therefore provide some preliminary indication of his later cognitive abilities.

Whose Score on the Bayley Scales of Infant Development Will