@article {689047,
	title = {Examining the Factor Structure and Discriminative Utility of the IBQ-R in Infant Siblings of Autistic Children},
	journal = {Child Development},
	volume = {93},
	number = {5},
	year = {2022},
	month = {29 April 2022},
	pages = {1398-1413},
	abstract = {Using the Infant Behavior Questionnaire-Revised in a longitudinal sample of infant siblings of autistic children (HR; n=427, 171 female, 83.4\% White) and a comparison group of low-risk controls (LR, n=200, 86 female, 81.5\% White), collected between 2007 and 2017, this study identified an invariant factor structure of temperament traits across groups at 6 and 12 months. Second, after partitioning the groups by familial risk and diagnostic outcome at 24 months, results reveal an endophenotypic pattern of Positive Emotionality at both 6 and 12 months, (HR-ASD \&lt; HR-no-ASD \&lt; LR). Third, increased {\textquoteleft}Duration of Orienting{\textquoteright} at 12 months was associated with lower scores on the 24-month developmental outcomes in HR infants. These findings may augment efforts for early identification of ASD.},
	url = {https://srcd.onlinelibrary.wiley.com/doi/10.1111/cdev.13781?af=R},
	author = {Sung, Sooyeon and Angela Fenoglio and Wolff, Jason J. and Robert T. Schultz and Botteron, Kelly N. and Dager, Stephen R. and Estes, Annette M. and Hazlett, Heather C. and Zwaigenbaum, Lonnie and Piven, Joseph and Elison, Jed T.}
}
