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John is a Scientist at the Frank Porter Graham Child Development Institute. He has served as the data analyst on multiple projects ranging from investigations of developmental delays, particularly with regard to children with Fragile X syndrome and autism, to studies of efficacy of early intervention programs in childcare. His primary research interest is in measurement analysis and he has recently been involved in several projects using factor analytic and item response theory models in scale development and analysis. Currently, he has major projects underway on the measurement of childcare quality and sensory features of autism.

John Sideris
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