This study presents detailed distributional analyses of voice onset times (VOTs) from seven 5-year-old children and 14 adults. Distributional non-normality was common in both data sets with children showing greater skew. Results suggest that theories of VOT development should not be based solely on means and standard deviations but need to address…

The purpose of the study was to identify strategies used by preservice elementary teachers to index distributions of data. A secondary purpose of the study was to investigate whether representational form influenced the type of representative values constructed. Two hundred eighty-three preservice teachers were administered a selection of tasks…

A sample of 134 sixth-grade students who were using the Connected Mathematics curriculum were administered an open-ended item entitled, Vet Club (Balanced Assessment, 2000). This paper explores the role of misconceptions and naive conceptions in the acquisition of statistical thinking for middle grades students. Students exhibited misconceptions…

New data on noncredit course offerings at colleges and universities help to generate a statistical portrait of these increasingly important programs.

A one-week experiment that was designed for providing students in an analytical chemistry laboratory course with an experience in statistical treatment of data is described. This laboratory experience benefited the students in several areas as they gained familiarity with many analytical glassware that they had not seen or used before, the…

This study uses the context of the weather to explore the development of students' intuitive ideas of variation from pre-Grade 1 to Grade 9. Three aspects of understanding these intuitions associated with variation are explored in individual videotaped interviews with 73 students: explanations, suggestions of data, and graphing. The development of…

This article focuses on the use of statistics in policy and evaluation research and the need to present statistical information in a form that is meaningful to mixed audiences. Three guidelines for formulating and presenting meaningful statistics are outlined. Understandability ensures that knowledge of statistical methods is not required for…

We consider the question of how variation in the number and reliability of indicators affects the power to reject the hypothesis that the regression coefficients are zero in latent linear regression analysis. We show that power remains constant as long as the coefficient of determination remains unchanged. Any increase in the number of indicators…

The Departments of Labor and Higher Education, working in close collaboration with the constituent units of public higher education, present this comprehensive report on the employment of graduates of the public colleges and universities. This report summarizes the employment and compensation experience of students who graduated from the State's…

This study examines the relationship between high-stakes school accountability and its effects upon student test scores and school policies. The authors seek to understand the extent to which accountability sanctions and incentives for the poorest-performing schools in Florida explain subsequent changes in school practices and policies as well as…

The need for hands-on computer laboratory experience in undergraduate and graduate statistics education has been firmly established in the past decade. As a result a number of attempts have been undertaken to develop novel approaches for problem-driven statistical thinking, data analysis and result interpretation. In this paper we describe an…

Few national studies have been conducted on students' receipt of arts instruction, particularly in the early grades. To address this gap in the literature, this Issue Brief provides a descriptive look at the prevalence of arts instruction received by first and third grade public school students in their schools. Using spring 2000 and spring 2002…

This brief report provides an update to the analysis of five cohorts of new teachers in the Baltimore City Public School System (1999-2000, 2000-01, 2001-02, 2002-03, 2003-04). Presented here are updated retention figures using Baltimore City Public School System (BCPSS) teacher data for 2004-05, comparing teachers with different certification…

Using the data from Achieving the Dream: Community Colleges Count, this issue of "Data Notes" is the second of a two-part series investigating the characteristics of late stop-outs--students who accumulate at least 30 credits within the first two years, only to stop out without completing credentials or transferring. The data show that male…

Using the qualitative research method known as folknography, the authors led a research team to the heart of Illinois farm country to ask the question "What are the perceptions of the people of the Midwest concerning math and math education?" A review of the literature includes Canadian and Australian references on the topic, as well as…