Extending the Utility of the Views of Nature of Science Assessment through Epistemic Network Analysis

Science & Education - An understanding of how science is enacted and how scientific knowledge is generated, or the nature of science (NOS), is a major goal of science education. NOS views have...     

Who SKIPS? Using Temperament to Explain Differential Outcomes of a Motor Competence Intervention for Preschoolers

Purpose: Although motor skill interventions often improve fundamental motor skills (FMS) during preschool, the extent of individual children’s success in development of FMS still varies among children receiving the same intervention. Temperament is multifaceted and includes negative affect (high levels of frustration or anger), effortful control (focus, self-regulation, and concentration), and surgency (energy and activity level). Temperament often influences cognitive, social, and behavioral outcomes and may be a significant factor in the development of FMS. The purpose of this study was to examine the influence of temperament on children’s improvement in FMS within a gross motor intervention. Method: Participants (N = 80; M_age = 55.36 months, SD = 6.99 months) completed the Test of Gross Motor Development-Second Edition prior to and after intervention. Teachers completed the Child Behavior Questionnaire-Very Short Form to examine each child’s temperament. To account for possibility of a Type 1 error, we conducted 6 separate 2 (temperament variable: high, low) × 2 (treatment: intervention, control) analyses of covariance and examined posttest scores for locomotor and object-control skills with pretest scores as covariates among participants with high and low surgency, negative affect, and effortful control. Results: Results revealed children with low levels of negative affect and surgency and high levels of effortful control demonstrated greater gains (η_p² = .05–.34) in both locomotor and object-control skills during motor skill intervention compared with their peers. Conclusion: Providing interventions tailored to temperamental profiles could maximize gains in FMS through intervention.     

Social Exclusion in Childhood: A Developmental Intergroup Perspective

Interpersonal rejection and intergroup exclusion in childhood reflect different, but complementary, aspects of child development. Interpersonal rejection focuses on individual differences in personality traits, such as wariness and being fearful, to explain bully–victim relationships. In contrast, intergroup exclusion focuses on how in‐group and out‐group attitudes contribute to social exclusion based on group membership, such as gender, race, ethnicity, culture, and nationality. It is proposed that what appears to be interpersonal rejection in some contexts may, in fact, reflect intergroup exclusion. Whereas interpersonal rejection research assumes that victims invite rejection, intergroup exclusion research proposes that excluders reject members of out‐groups to maintain status differences. A developmental intergroup social exclusion framework is described, one that focuses on social reasoning, moral judgment, and group identity.     

Teaching the teacher: exploring STEM graduate students’ nature of science conceptions in a teaching methods course

ABSTRACT

Graduate students regularly teach undergraduate STEM courses and can positively impact students’ understanding of science. Yet little research examines graduate students’ knowledge about nature of science (NOS) or instructional strategies for teaching graduate students about NOS. This exploratory study sought to understand how a 1-credit Teaching in Higher Education course that utilised an explicit, reflective, and mixed-context approach to NOS instruction impacted STEM graduate students’ NOS conceptions and teaching intentions. Participants included 13 graduate students. Data sources included the Views of Nature of Science (VNOS-Form C) questionnaire administered pre- and post-instruction, semi-structured interviews with a subset of participants, and a NOS-related course project. Prior to instruction participants held many alternative NOS conceptions. Post-instruction, participants’ NOS conceptions improved substantially, particularly in their understandings of theories and laws and the tentative nature of scientific knowledge. All 12 participants planning to teach NOS intended to use explicit instructional approaches. A majority of participants also integrated novel ideas to their intended NOS instruction. These results suggest that a teaching methods course for graduate students with embedded NOS instruction can address alternative NOS conceptions and facilitate intended use of effective NOS instruction. Future research understanding graduate students' NOS understandings and actual NOS instruction is warranted.     

Benefits of the Comprehensive Child Development Program as a function of AFDC receipt and SES

The benefits for children at the Pittsburgh site of the federal Comprehensive Child Development Program (CCDP) were examined as a function of family welfare status (Aid to Families with Dependent Children; AFDC) and SES. The CCDP was the largest attempt by the federal government to provide two-generation, case-managed, comprehensive services to low-income families. Participating families could set their own goals and choose services to achieve them, but relatively few services were directed specifically at children. Results showed that more Pittsburgh families in the CCDP treatment group (N = 120) left AFDC than in the control group (N = 120), consistent with results from a national evaluation of the CCDP. Children whose families were on AFDC regardless of treatment group had lower mental test scores, even after controlling for family SES, a result suggesting that AFDC receipt over and above income level was associated with poorer child mental performance. The CCDP was associated with higher children's mental scores plus improvements over time in achievement scores only for children in families who were not on AFDC, even after controlling for SES. Such parents were more likely to choose parenting and child goals and services, which in turn were associated with higher child mental scores. In contrast, parents who were on AFDC tended to choose adult-centered goals and services, which did not benefit children. Therefore, in contrast to the national evaluation, which found no benefits of the CCDP for children, these analyses showed that the CCDP did produce benefits for children whose parents were not on AFDC, who tended to choose parenting and child services.     

Making learning last: teachers’ long-term retention of improved nature of science conceptions and instructional rationales

ABSTRACT

Despite successful attempts to improve learners’ nature of science (NOS) conceptions through explicit, reflective approaches, retention of improved conceptions is rarely addressed in research. The issue of context for NOS instruction has implications for this retention. Whether to contextualise has been the question occupying science educators’ attention. We think this question is misplaced. Instead, we build upon recent research addressing a context continuum – drawing on the strengths of both contextualised and noncontextualised NOS instruction – to improve retention. Although there are many different potential contexts for NOS instruction, this investigation focuses on science content as context. The present investigation focused on long-term retention of improved NOS conceptions and rationales for NOS instruction. Participants were all 25 teachers who completed a professional development programme (PDP) utilising a mixed contextualisation approach to NOS instruction. We classified teachers’ NOS conceptions into three levels of understanding using the Views of the Nature of Science Form-C responses and interviews three times over the year: pre-, post-, and 10-month delayed post-PDP. Results indicated that initially participants held many alternative NOS conceptions. Post-instruction, responses were substantially improved across all NOS concepts. Furthermore, nearly all of the participants’ conceptions were retained across the academic year following the PDP. Participants offered varied rationales for NOS instruction including its potential to improve students’ scientific literacy, perceptions of the relevance of science, improve positive risk-taking, and increase tolerance for differences. These results contrast favourably with previous reports of the retention of improvements in NOS conceptions over time.     

Promoting Conceptual Change for Complex Systems Understanding: Outcomes of an Agent-Based Participatory Simulation

Components of complex systems apply across multiple subject areas, and teaching these components may help students build unifying conceptual links. Students, however, often have difficulty learning these components, and limited research exists to understand what types of interventions may best help improve understanding. We investigated 32 high school students’ understandings of complex systems components and whether an agent-based simulation could improve their understandings. Pretest and posttest essays were coded for changes in six components to determine whether students showed more expert thinking about the complex system of the Chesapeake Bay watershed. Results showed significant improvement for the components Emergence (r = .26, p = .03), Order (r = .37, p = .002), and Tradeoffs (r = .44, p = .001). Implications include that the experiential nature of the simulation has the potential to support conceptual change for some complex systems components, presenting a promising option for complex systems instruction.     

The effects of prior informal science and math experiences on undergraduate STEM identity

ABSTRACT

Background

Recent reports have noted a need for increasing both the recruitment and retention of young people into the STEM disciplines. While many studies have reported on the benefits of classroom reform in formal education environments, less is known about the role of informal education programs in young people’s academic aspirations, interest and competence in science and math domains.     

Examining ontological and self-monitoring scaffolding to improve complex systems thinking with a participatory simulation

Instructional Science - Most of humanity’s important and difficult problems such as pandemics, environmental health, and social unrest require recognizing and understanding complex systems....