Multilevel bifactor item response theory (IRT) models are commonly used to account for features of the data that are related to the sampling and measurement processes used to gather those data. These models conventionally make assumptions about the portions of the data structure that represent these features. Unfortunately, when data violate these…

The Programme for International Student Assessment (PISA) is a worldwide research project involving schools and students in over 70 countries. It is run by the Organisation for Economic Co-operation and Development (OECD), takes place every three years, and is designed to examine how 15-year-olds can apply what they have learned in school to real…

The current mission mandates of the National 4-H Headquarters are Citizenship, Healthy Living, and Science. Robotics programs are excellent in fulfilling the Science mandate. Robotics engages students in STEM (Science, Engineering, Technology, and Mathematics) fields by providing interactive, hands-on, minds-on, cross-disciplinary learning…

The following article presents a concept of a science club which was developed by two master's students as a part of their thesis and which has been developed and improved ever since. The extra-curricular concept emphasises pupils' individuality through focusing on problem based leaning, station learning, and mixed age groups. Having joined the…

International assessments provide important knowledge about science education and help inform decisions about policies, programmes, and practices in participating countries. In 2006, science was the primary domain for the Programme for International Student Assessment (PISA), supported by the Organisation for Economic Cooperation and Development…

The theme of this paper is students' interest in future natural sciences-related careers. It is based on data from the Programme for International Student Assessment survey that in 2006 focused attention on the science literacy achievements of students. The paper uses the methods of linear regression modelling and structural equation modelling in…

This article is an introduction to the international assessments Programme for International Student Assessment (PISA) and the Trends in International Mathematics and Science Study (TIMSS) and a review of results from 2003. International comparisons, especially in the media, have elevated interest in science education and stimulated discussions…

The purpose of this document is to provide background to the text and recommended actions of the Australian School Science Education National Action Plan, 2007-2012. The first part presents a synthesis of the national and international research used to identify gaps and overlaps amongst activities related to school science education in …