Monitoring the Future (MTF) is designed to give such attention to substance use among the nation's youth and adults. It is an investigator-initiated study that originated with, and is conducted by, teams of research professors at the University of Michigan's Institute for Social Research. MTF contains ongoing national surveys of both adolescents…

Purpose: Lead is a well-established environmental contaminant that over the last 50 years has become recognized as a neurotoxin with its greatest concern for the developing child (i.e. both in-utero and postnatally). What is problematic is that children exposed to lead often come from lower socioeconomic status (SES), are largely Black communities…

Screen time is now pervasive in the lives of preschool children, posing potential risks for sleep disturbances and behavioural problems. Therefore, the present study used a questionnaire to survey mothers (M[subscript age] = 35.56 years, SD = 3.62 years) of a total of 571 preschool children (M[subscript age] = 4.70 years, SD = 0.88 years; 44.70%…

Supporting young students in developing meanings for the set-theoretic function definition is emphasized in 6th-12th grade curricula around the world. In prior work, we have highlighted how covariational reasoning supports college students in constructing relationships that afford considering mathematical properties important for a set-theoretic…

Co-thought gestures are understudied as compared to co-speech gestures yet, may provide insight into cognitive functions of gestures that are independent of speech processes. A recent study with adults showed that co-thought gesticulation occurred spontaneously during mental preparation of problem solving. Moreover, co-thought gesturing (either…

In medical sciences, a disease condition is typically associated with multiple risk and protective factors. Although many studies report results of multiple factors, nearly all meta-analyses separately synthesize the association between each factor and the disease condition of interest. The collected studies usually report different subsets of…

This article addresses the implications of researcher-student cooperation in the production of empirical material. For the student to replace the experienced researcher and work under the researcher's supervision, we call such work proxy-produced ethnographic work. Although there are clear advantages, the specific relations and positions arising…

While Physics Education Research has a rich tradition of problem-solving scholarship, most of the work has focused on more traditional, well-defined problems. Less work has been done with ill-structured problems, problems that are better aligned with the engineering and design-based scenarios promoted by the Next Generation Science Standards. This…

Evidence-based practices (EBP) in psychology and education are necessary for the development of best practices and required by law. However, EBP is a term that is often freely applied in these settings without considering the implications of the meaning of "evidence-based." Evidence-based practices are defined as the process of…

Two studies comparing Chinese and German samples by using work-related verbal creativity tasks examined the role of culture in creative expression thereby also exploring culture's potential influence on creativity judgements. In Study 1, German participants (N = 60) scored higher than Chinese respondents (N = 60) in a work-related unusual uses…

The paper presents the initial results of research into the individual conditions of the psychosocial functioning of NEETs in the educational context. The study was performed between May and September 2017 in Slovakia, Poland and Estonia, by means of a triangulation of quantitative tools. The general objective of the study is to diagnose the level…

Cross-disciplinary fields such as biotechnology require chemical engineers and non-engineers to routinely work together, thus creating a need for non-engineers to learn chemical engineering. But limited knowledge on non-engineers' learning preferences and the lack of pedagogical methods to teach non-engineers restricts the opportunities available…

Context-based learning (CBL) has influenced teaching and learning science in many countries over the past decades. Twelve years ago, a special issue on CBL was published in this "Journal," focusing on CBL curriculum development. Seven papers in this current special issue on CBL now address the question of how a context influences the…

This teaching brief describes an engaging, in-class exercise that introduces genetic algorithms as well as advanced Excel functions and capabilities by modeling the familiar Sudoku puzzle. Student groups are first asked to manually solve a given puzzle and then translate that solution methodology to a spreadsheet model. This exercise can be used…

Recently, a debate has arisen around what can be called the "indistinguishability thesis," that is, the claim that it is impossible to distinguish between qualitative and quantitative research. In contrast, this article argues that the inability to define simple, sharp boundaries around qualitative and quantitative research does not…