Objective: Adverse consequences of binge drinking episodes are well-established, but fewer studies have investigated how incremental changes in daily alcohol use relate to well-being. We examined within- and between-person associations in alcohol use and next-day valued living to enhance our understanding of the impact of alcohol use on…

Controversial topics may be uncomfortable for teachers to include in their in-class discussions. However, there are considerable cognitive and social-emotional benefits to engagement in controversial conversations, or classroom discussion about controversial topics. It is critical that teachers support students in respectful discussion to help…

This paper examines evidence for relationships among individual differences (IDs) in L1 achievement, L2 aptitude, and L2 achievement. It begins by providing an overview of my academic journey from L1 educator to L2 researcher and explains the development of the Linguistic Coding Differences Hypothesis (LCDH). Next, I review Peter Skehan's…

The current study investigated the role of visual short-term memory, working memory, and declarative memory as individual differences in the earliest stages of vocabulary and syntactic learning in "Duolingo"-based language instruction. Thirty-eight L1-Greek adults completed memory tasks and engaged in learning Navajo on…

Guided by Dynamic Systems Theory (DST) and multidimensional perspectives on individual differences (IDs) in instructed second language (L2) learning (e.g., Larsen-Freeman, 2014; Sun & Zhang, 2020), this longitudinal mixed-methods study focuses on three conceptually different categories of L2 learners' IDs: working memory (WM), motivation, and…

Mandarin Chinese verbs are composed of one to four characters that function together as a conceptual unit. However, in modern spoken Chinese, most of these verbs are two-character compounds. This dissertation is focused on adult second language (L2) learners' acquisition of these two-character verb compounds. Specifically, the acquisition of a…

This research investigated the relationships between pre-service chemistry teachers' science process skills and critical thinking skills. The sample consisted of 146 pre-service chemistry teachers (47 males, 99 females) drawn from an Indonesian public university in the first semester of 2017/2018 academic year. Through a quantitative correlational…

Research has indicated a fall in college student mental health over the past 16 years, with no corresponding increase in use of mental health care services. To investigate how college students choose to manage stressful issues, we assessed coping styles as measured by the dispositional COPE inventory in a multi-state sample of undergraduate…

Purpose: The purpose of this paper is to examine the personal antecedents to taking on the challenge of learning, particularly when there is competition for time at work. Taking on challenging tasks, particularly those that enhance learning, is a critical behavior in today's dynamic business environments. This paper explores how individual…

Children's emotion understanding has emerged as one of the best predictors of their psychological well-being, pro-social competences and school achievement. The main goal of this study was to evaluate for the first time the impact of an easy-to-use and not time-consuming classroom dialogue-based intervention (a) on preschool children's…

In this closing chapter and commentary to the special issue of "High Ability Studies" focusing on self-regulated learning (SRL) in gifted, high ability, and talented students, I delineate a number of promising challenges and directions for future theory, methodology, research, and applications in the domain of self-regulated learning. I…

Object names are a major component of early vocabularies and learning object names depends on being able to visually recognize objects in the world. However, the fundamental visual challenge of the moment-to-moment variations in object appearances that learners must resolve has received little attention in word learning research. Here we provide…

While some individuals are able to confidently make competent choices, others make poor decisions but are unjustifiably confident. What are their individual characteristics? This study examined individual differences in cognitive and metacognitive competence and arrogance. In doing so, we determined the role of metacognitive confidence and…

Purpose: Children come to understand many words by the end of their 1st year of life, and yet, generally by 12 months, only a few words are said. In this study, we investigated which linguistic factors contribute to this comprehension-expression gap the most. Specifically, we asked the following: Are phonological neighborhood density, semantic…

Recent studies of second language (L2) construction learning using artificial linguistic systems have begun to closely examine the role of individual differences, including personality. In such studies, adult participants learn form-meaning mappings after exposure, with scores on generalization tests as a standard criterion for learning. This…