Facilitating Learning in an Interactive Science Simulation: The Effects of Task Segmentation Guidance on Adults’ Inquiry-Based Learning and Cognitive Load

The current study investigated how a guidance method that segments a complex task into simpler subtasks affects adults’ inquiry-based learning in a science simulation environment. In a multivariate inquiry task, participants were asked to investigate the effects of all variables in one round of inquiry. In another group, participants were guided to investigate the effect of one variable at a time. The results indicate that the guided participants conducted more systematic and comprehensive investigations and reported a lower level of cognitive load compared with the unguided participants. The current findings provide implications for designing simulation-based learning environments to facilitate learning. (Keywords: scientific reasoning, inquiry learning, guidance, science education, cognitive load)     

Fertility, relative wages, and labor market decisions: A case of female teachers

This paper examines the effects of fertility and relative wages on occupational choice (teaching versus non-teaching) and labor force participation decisions of female college graduates using selectivity-corrected panel estimations.We find that the presence of a new born baby is not particularly important to the choice of occupation, but significantly discourages female labor force participation, especially among teachers. Higher relative wages are found to effectively attract female college graduates into teaching. College major in education is one of the most relevant determinants for female college graduates to become teachers. Though investing educational expenditures on teachers’ salary seems to be a valid policy, providing incentives for female college students to major in education will be an alterative way to secure teacher supply.     

Evidentiary Competence: Sixth Graders'' Understanding for Gathering and Interpreting Evidence in Scientific Investigations

With the growing emphasis on the development of scientific inquiry skills, there is a strong need for more research on students' ability to collect and interpret evidence. This paper calls attention to the notion of evidentiary competence that refers to the concepts and reasoning skills involved in the collection, organization, and interpretation of data. We proposed a set of concepts and skills involved in evidentiary competence and examined sixth of them—the priority, relevancy, objectivity, replicability of evidence, and the interpretation of examples and tables—using a written instrument contextualized in atmospheric science. Analyses of 40 sixth grade students' answers and explanations revealed that their understanding of scientific evidence and the data collection process was quite weak in several respects. For example, many students neither appreciated the role of empirical evidence in scientific inquiry, nor distinguished relevant evidence from irrelevant evidence, nor understood the importance of reliable and objective observations, nor interpreted examples and tables appropriately. Results suggest that more explicit instructions are needed in order to strengthen students' ability to collect and interpret data, especially in the current data rich information age.     

Roles of Abductive Reasoning and Prior Belief in Children’s Generation of Hypotheses about Pendulum Motion

The purpose of the present study was to test the hypothesis that student’s abductive reasoning skills play an important role in the generation of hypotheses on pendulum motion tasks. To test the hypothesis, a hypothesis-generating test on pendulum motion, and a prior-belief test about pendulum motion were developed and administered to a sample of 5th grade children. A significant number of subjects who have prior belief about the length to alter pendulum motion failed to apply their prior belief to generate a hypothesis on a swing task. These results suggest that students’ failure in hypothesis generation was related to abductive reasoning ability, rather than simple lack of prior belief. This study, then, supports the notion that abductive reasoning ability beyond prior belief plays an important role in the process of hypothesis generation. This study suggests that science education should provide teaching about abductive reasoning as well as scientific declarative knowledge for developing children’s hypothesis-generation skills.     

Counseling sexually abused girls: the impact of sex of counselor

OBJECTIVE: The present study was conducted to assess the impact of sex of counselor on the therapeutic process for sexually abused girls in individual counseling. METHOD: Raters evaluated videotapes of counseling sessions recorded for 35 sexually abused girls who had been systematically assigned to brief-term psychoeducationally oriented treatment with either a male or female counselor. Clients' in-session behavior was rated using accepted therapeutic process measures, while statistically controlling for the effect of girls' pretreatment comfort level with male and female counselors. RESULTS: Overall, MANCOVA results revealed that girls' participation in counseling was not significantly related to session number, the child's age (i.e., preadolescent vs. adolescent), or the sex of counselor who provided treatment services. However, univariate results and graphic representations of girls' behavior suggest that adolescent clients, when compared with their preadolescent counterparts, seemed to be more reluctant to discuss certain child sexual abuse topics. CONCLUSIONS: The findings suggest that caution is warranted regarding categorical recommendations on the assignment of young female survivors to male counselors. Delimitations and limitations of the study and directions for future research are discussed.     

International student networks as transnational social capital: illustrations from Japan

ABSTRACT

This paper examines how social isolation in a non-Anglophone context where English is not the main language of instruction for local students but is for international students, has unintended consequences for social capital formation among the latter. What factors influence international student network formation in such places where linguistic barriers are institutionalised and what are their consequences not only during college but beyond, in shaping students’ career plans? Using qualitative interview data with 67 international (originating from Asian countries) and domestic students in Japanese universities, we find that such institutional barriers negatively promote greater isolation of international students but positively encourage the formation of diverse multinational ties – a process through which international students gain ideas, confidence and direction regarding their post-graduation career plans to work transnationally.     

Cognitive Stimulation at Home and in Child Care and Children’s Preacademic Skills in Two-Parent Families

This paper used the Early Childhood Longitudinal Study-Birth Cohort (N = 1,258) to examine the influence of hilevels of cognitive stimulation from mothers, fathers, and childcare providers at 24 months and children’s pre-academic skills at 48 and 60 months in two parent families. Results from path analysis showed direct positive effects of fathers’ early cognitive stimulation on early reading and math skills at 48 and 60 months. There were also two moderated effects: The effects of high levels of maternal stimulation at 24 months on early math and reading skills at 48 months were largest for children also receiving high levels of cognitive stimulation from their childcare providers. Implications for including fathers in studies of the home cognitive stimulation and strengthening the parent-childcare connection are discussed.     

计算机辅助合作讨论中开放和性别对批判性思维培养的影响

这项研究考察了学生在参与计算机辅助合作讨论中,思想开放和性别对批判性教学的影响。研究发现：1）思想开放的学生在讨论问题时在提出的反驳次数上会有明显差异;2）性别不同的学生在提出反驳的次数上有显著差异;3）思想开放程度不同的男生之间,提出反驳的次数有显著差异;而在女生中则没有这种差异。4）思想开放程度不同的学生在面对挑战时作出的反应是一样的。这些发现表明了思想开放程度与性别之间是如何相互作用的、计算机辅助合作讨论中开放是如何影响学生的表现的,以及应对策略如何能用来分析和建构批判思维讨论的。     

Light distribution from rectangular sources

The rectangular light source is more frequently encountered in engineering practice than any other form. Thus, both for artificial lighting and natural lighting, it is desirable to have convenient methods of obtaining the light distributions produced by rectangular sources. We have attempted to supply this need by calculating pharosage from sources of uniform helios and also for the non-uniform sources representing average overcast skies. Figures 5 to io are found to be particularly convenient in the visualization of light distributions.The results of these graphs are readily extended to any point and to surfaces tilted at any angle, provided that the plane of the illuminated surface does not cut the source.In conclusion, we wish to express our appreciation of the careful work of the computers: Messrs. L. S. Castlemann M. S. Cettei, J. C. Gibbs, A. L. Keller, G. J. Laurent, V. Lippitt, J. M. Margolskee, L. Mautner, J. Topalian.