This study investigates how sensitively the current grit measure (Grit-S) is able to reflect the differences between individuals (i.e. item discrimination) and change within individuals (i.e. sensitivity to change of items) using longitudinal data. Data from the Korean Children and Youth Panel Study 2018 of elementary (fourth grade) and middle…

This nonexperimental, longitudinal panel study was designed to test the predictive capacity of a grit intervention within a first-year seminar course that targeted academically underprepared students at a Mississippi community college. Extant pre- and post-grit scores for developmental students enrolled in the first-year seminar were analyzed for…

The aims of the current study are twofold. First, we examine the relationship between specific modalities of career interventions and initial employment in IT. Specifically, we take a skills and social learning perspective to distinguish between direct and vicarious experiences of career interventions and relate these experiences to IT…

This article distinguishes three measures of intergenerational economic mobility that emerge when the population is divided into groups: overall individual mobility, within-group mobility, and between-group mobility. We clarify their properties and the relationship between them. We then evaluate Clark's use of surname between-group persistence as…

Purpose: The primary aim of the current study was to examine the developing phonological awareness of 4- to 5-year-old children who stutter (CWS) in relation to eventual recovery (CWS-eRec) or persistance (CWS-ePer) in stuttering, accounting for the presence of typical speech (TS) production or speech sound disorder (SSD). Method: In the 1st year…

The children of high-income parents often become high-income adults, while their low-income peers often become low-income adults. Education plays a central role in this intergenerational income persistence. Because education-based inequalities grew in recent decades, many scholars predicted that intergenerational income persistence would increase.…

The lack of students' persistence (or student's effort to continue their academic studies until degree completion) in Science, Technology, Engineering, and Mathematics (STEM) and the attrition of STEM students as well as the shortage of STEM workers have gathered much attention from policy makers, governmental agencies, higher education…

Self-injurious and aggressive behaviors are common in fragile X syndrome (FXS). However, little is known about the persistence of these behaviors and associated risk markers. We established the prevalence and persistence of self-injurious and aggressive behaviors over eight years in males with FXS, and associations with risk markers. Results…

This article examines the unique features of the rural school context and how these features are associated with the stability of principals in these schools. Given the small but growing literature on the characteristics of rural principals, this study presents an exploratory analysis of principal stability across schools located in different…

This dissertation examined the relationship between scores on the Effective Leader strand of the 5Essentials Survey for elementary school principals in the suburban collar counties around Chicago and student achievement on state assessments in Illinois, using longitudinal data from 2013 to 2015. This study selected only those schools which gave…

Purpose: Phonological skills have been associated with developmental stuttering. The current study aimed to determine whether the neural processes underlying phonology, specifically for nonword rhyming, differentiated stuttering persistence and recovery. Method: Twenty-six children who stutter (CWS) and 18 children who do not stutter, aged 5…

Since 2010, I have acted as the full-time researcher on a longitudinal qualitative study which has been following the transition experiences of more than 80 young people in the United Kingdom who have a visual impairment. When I first started working with these participants, they were aged 14-16 years, and I have now been working with them for 6…

This article describes the results of a series of studies that involved functional communication training (FCT) conducted in children's homes by their parents. The 103 children who participated were six years old or younger, had developmental delays, and engaged in destructive behaviors such as self-injury. The core procedures used in each study…

We examined children's task engagement during a challenging puzzle task in the presence of their primary caregivers by using a representative sample of rural children from six high-poverty counties across two states. Weighted longitudinal confirmatory factor analysis and structural equation modeling were used to identify a task engagement factor…

In 2 separate longitudinal studies, infants and their mothers were seen in 3 longitudinal visits. At 2 months, they were observed in free play where mothers' contingency toward their infants was obtained. At 5 months, a goal blockage response was produced when a previously learned contingent response became ineffective in producing an interesting…