Reading Performance : Evidence From a Twin Study Math Fluency Is Etiologically Distinct From Untimed Math Performance , Decoding Fluency , and Untimed

The authors examined whether math fluency was independent from untimed math and from reading using 314 pairs of school-aged twins drawn from the Western Reserve Reading and Math Projects. Twins were assessed through a 90-min home visit at approximately age 10 and were reassessed in their homes approximately 1 year later. Results suggested that the shared… CONTINUE READING