For institutions intent on improving their research student outcomes, it is important to identify the variables most strongly associated with timely or tardy completions, which the university has the potential to influence or amend. For this to occur the analyses of doctoral completion times need to be conducted at an institution or discipline…

The random intercept cross-lagged panel model (RICLPM) decomposes longitudinal associations between two processes X and Y into stable between-person associations and temporal within-person changes. In a recent study, Bailey et al. demonstrated through a simulation study that the between-person variance components in the RICLPM can occur only due…

Background: Research has established a bidirectional association between sleep disturbances and depression in both adults and youth, as well as links between depression and circadian rhythms and chronotype, predominantly in adult populations. However, the link between chronotype and depression in the general adolescent population, independently of…

The objective of this study is to examine social media mindfulness and other social media habits as predictors of depression in adolescents. As depression and poor mental health increase for American adolescents, so does the research surrounding the positive outcomes associated with mindfulness. It is possible that mindfulness could be an…

Purpose: The aim of this study was to analyze the association of total leisure noise exposure and hearing threshold shifts over 5 years among adolescents enrolled in the Ohrkan cohort study. Method: The Ohrkan cohort of 2,148 students aged 13-19 years was recruited from 2009 to 2011 and followed up 5 years later. Complete baseline and follow-up…

The effects of acute stress on memory encoding are complex. Recent work has suggested that both the delay between stress and encoding and the relevance of the information learned to the stressor may modulate the effects of stress on memory encoding, but the relative contribution of each of these two factors is unclear. Therefore, in the present…

Purpose: Converging research suggests that speech timing, including altered rate and pausing when speaking, can distinguish autistic individuals from nonautistic peers. Although speech timing can impact effective social communication, it remains unclear what mechanisms underlie individual differences in speech timing in autism. Method: The present…

School transportation may have important implications for academic success, but few studies examine how these variables are related. This systematic review is the first that synthesizes research linking school transportation with academic outcomes. Using the PRISMA framework, the authors conducted a literature search across multiple data sources…

This illuminating volume explores the often-overlooked relationship between college student activism and well-being, drawing on a multi-phase study that explores college students' perspectives on how their activism impacts their well-being. Based on a study of 119 US college students, the authors share their findings through a constructivist,…

Research Findings: This study investigated the sequential mediating effects of parental material investment (MI) and time investment (TI) upon the correlation between family socioeconomic status (SES) and toddlers' development (TD). Data derived from a 2016 data set, including a sample of 1,316 toddlers based in 117 villages across 22 counties…

Decisions to invest in human capital depend on people's time preferences. We show that differences in patience are closely related to substantial subnational differences in educational achievement, leading to new perspectives on longstanding within-country disparities. We use social-media data -- Facebook interests -- to construct novel regional…

The purpose of this quantitative associative correlational study was to examine to what extent there is an associative relationship for high school teacher attitudes toward professional development and time for classroom preparation, as measured by the Teaching and Learning Conditions of Colorado survey, and overall rural high school performance.…

Objective: The present study examined the association between passive FB use and academic stress, as well as the moderating role of users' dispositional levels of authenticity. Participants and Methods: A total of 188 college students responded to questionnaires regarding their FB use, trait authenticity, and academic stress. Results: The amount…

The present study aimed to test if perceived pubertal timing was related to marijuana and alcohol use through deviant peer affiliation. Additionally, we examined if the deviant peer pathway was moderated by impulsiveness, gender, or both. Data were collected from 342 youth, most of whom had a family history of substance use disorder. Youth…

This comment on Gascón & Nicolás (2017) explores relationships between mathematics education research and conceptualizations of time. Using Fabian's critique of temporal perspectives in anthropological research (1983) and Lemke's framework of timescales (2000), we consider ways in which implicit attitudes towards time in research can position…