@article{7edceb52ed6b4e2fa060e909a3044434,
title = "Significance of Bayley Scale score changes following iron therapy. II",
author = "Ernesto Pollitt and Daryl Greenfield and Rudolph Leibel",
note = "Funding Information: Honig and Oski's (I 978) findings demonstrated that iron deficient anemic infants show a statistically significant improvement on the Bayley Scale of Infant Development approximately 7 to 10 days following a single intramuscular injection of an iron-dextran preparation, Imferon. In the last paragraph of their paper the authors state: Our study suggests that deficits in cognition and emotional reactivity may be rapidly reversible if treated during the first two years of life. (p. 175) The rationale for their selection of the Bayley Scales included its high coefficient of reliability and test-retest reproducibility. These arguments are relevant to the test and tester reliability, but they do not speak to the equally important consideration of test validity. It is now recognized that developmental scales do not tap a unitary cognitive ability, but a composite of skills and abilities that differ at different developmental periods (McCall, 1976). Thus, it is not *Supported in part by an award from the National Institute of Child Health and Human Development (Grant R01 DH 08109), United States Public Health Service.",
year = "1979",
month = jan,
doi = "10.1016/S0163-6383(79)80029-6",
language = "English (US)",
volume = "2",
pages = "235--237",
journal = "Infant Behavior and Development",
issn = "0163-6383",
publisher = "Elsevier Limited",
number = "1",
}