Joel S. Steele

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Gross motor development (supine, prone, rolling, sitting, crawling, walking) and movement abnormalities were examined in the home videos of infants later diagnosed with autism (regression and no regression subgroups), developmental delays (DD), or typical development. Group differences in maturity were found for walking, prone, and supine, with the DD and(More)
Duncan et al. (2007) presented a new methodology for identifying kindergarten readiness factors and quantifying their importance by determining which of children's developing skills measured around kindergarten entrance would predict later reading and math achievement. This article extends Duncan et al.'s work to identify kindergarten readiness factors with(More)
We examine emotion self-regulation and coregulation in romantic couples using daily self-reports of positive and negative affect. We fit these data using a damped linear oscillator model specified as a latent differential equation to investigate affect dynamics at the individual level and coupled influences for the 2 partners in each couple. Results(More)
OBJECTIVES This study examined correlates of Norplant selection and satisfaction among low-income women. METHODS Interviews were completed in family planning clinics in 4 Florida counties with 1152 Norplant users and 1268 nonusers, with follow-up interviews with a subsample up to 1 year later. Logistic regression models estimated the associations of(More)
Duncan et al. (2007) examined associations between early behavioral and cognitive skills with later achievement. These associations were examined in 6 different data sets and results converged to suggest that early behavioral competences or problems had little, if any, prediction to later achievement and that attentional competences had small positive(More)
The structure of the human brain changes in several ways throughout childhood and adolescence. Perhaps the most salient of these changes is the strengthening of white matter tracts that enable distal brain regions to communicate with one another more quickly and efficiently. Here, we sought to understand whether and how white matter changes contribute to(More)
Bidirectional theories of social development have been around for over 40 years (Bell, 1968), yet they have been applied primarily to the study of antisocial development. In the present study, the reciprocal relationship between parenting behavior and children's socially competent behaviors were examined. Using the National Institute of Child Health and(More)
Mothers' perceptions of their infants and their own levels of self-efficacy contribute to developing maternal-infant attunement. The purpose of this investigation was to examine the associations between maternal perceptions of their own infants relative to other infants and maternal self-efficacy in a group of ethnically diverse, low-income, first-time(More)
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