Across three pre-registered studies (n = 221 4-9-year olds, 51% female; 218 parents, 80% female; working- and middle-class backgrounds; data collected during 2019-2021) conducted in the United States (Studies 1-2; 74% White) and China (Study 3; 100% Asian), we document the emergence of a preference for "strivers." Beginning at age 7,…

This study explored emotion situation knowledge of 6-8-year-old primary schoolchildren with language impairment (LI) and its relationship with their peer relations. Emotion situation knowledge contains experience-based predictions and anticipations of what will a person likely feel based on information about a particular social situation. To…

This study investigated the extent to which domain-general and domain-specific antecedents contributed to pre-algebra's initial level and growth rate among students who experience word-problem difficulty (WPD). We examined if such a profile differs for English-language learners (ELLs; n = 75) and non-ELLs (n = 55) with WPD. We assessed 130 U.S.…

One year after the COVID-19 quarantine, we conducted an eight-week pilot study with third graders (n = 246), who took a repeating knowledge, attitude, and behavior pretest and a reading comprehension posttest from the eBook for Oral Health Literacy© curriculum. Our research questions were: 1) Will the knowledge, attitude, and behaviors of third…

This study aims to examine the writing performance of primary school fourth-grade students in relation to the student-level variables (writing, reading comprehension, self-regulation-based writing, writing motivation, and writing anxiety) and classroom-level (teacher) variables (knowledge of text-writing instruction and text-writing instruction…

Climate change is not a future problem, it is a significant variation of weather conditions becoming warmer, wetter or drier. It is the longer-term trend that differentiates climate change from natural weather variability. The aim of this research was to determine primary school students' knowledge and attitudes related to climate change among…

Teacher-level factors are theoretically linked to student outcomes in data-based instruction (DBI; Lembke et al., 2018). Professional development and ongoing support can increase teachers' knowledge, skills, and beliefs related to DBI, as well as their instructional fidelity (McMaster et al., 2020). However, less is known about how each of these…

It is widely accepted that general intelligence and phonological awareness contribute to children's acquisition of reading and spelling skills. A further candidate in this regard is orthographic knowledge (i.e., the knowledge about permissible letter patterns). It consists of two components, word-specific (i.e., the knowledge of the spelling of…

Background: A strong knowledge of mathematics, beginning at the elementary level, is critical for participation in today's complex world. The home may be one way to facilitate individualized mathematics instruction, given that children spend more time at home than in an academic institution. Therefore, researchers are interested to see whether the…

The present study tests two predictions stemming from the hypothesis that a source of difficulty with rational numbers is interference from whole number magnitude knowledge. First, inhibitory control should be an independent predictor of fraction understanding, even after controlling for working memory. Second, if the source of interference is…

Algebraic competence is a major determinant of college access and career prospects, and equal sign knowledge is taken to be foundational to algebra knowledge. However, few studies have documented a causal effect of early equal sign knowledge on later algebra skill. This study assessed whether second-grade students' equal sign knowledge…

Background: Phonological processing skills have been found to contribute to spelling development across different orthographies; however, less is known about the role of orthographic knowledge. This longitudinal study explores the contribution of phonological and orthographic knowledge to spelling development in a semi-transparent orthography…

Background: Adaptive expertise is a highly valued outcome of mathematics curricula. One aspect of adaptive expertise with rational numbers is adaptive rational number knowledge, which refers to the ability to integrate knowledge of numerical characteristics and relations in solving novel tasks. Even among students with strong conceptual and…

Orthographic knowledge is predicted to be central in the process of children's reading development. We examined both the temporal order between orthographic knowledge and each of word reading and word spelling--effectively, which predicts which by including autoregressive controls--and cross-linguistic transfer between English and French for our…

The aim of the study was to examine which predictor variables are related to literacy skills among monolingual Swedish (n = 269) and bilingual Finnish-Swedish (n = 229) children at the first grade in the Swedish-speaking schools in Finland. The participants were assessed in phonological awareness, letter knowledge, rapid automatized naming (RAN),…