The Office of English Language Acquisition (OELA) has synthesized key data on English learners (ELs) into two-page PDF sheets, by topic, with graphics, plus key contacts. This Fast Facts covers data in the following categories: (1) States, Including D.C., with the Highest Concentration of ELs Who Are Black; (2) States, Including D.C., with the…

The Office of English Language Acquisition (OELA) has synthesized key data on English learners (ELs) into two-page PDF sheets, by topic, with graphics, plus key contacts. The topics for this report on English Learners (ELs) Who Are American Indian and/or Alaska Native (AI/AN) include: (1) States With the Highest Percentage of ELs Who Were AI/AN:…

The "Annual Disability Statistics Compendium" is a publication of statistics about people with disabilities and about the government programs which serve them. The "Compendium" is designed to serve as a summary of government statistics. The 2016 "Annual Disability Statistics Compendium" was substantially revised and…

This study examines state- and county-level data on population, age, race and ethnicity, housing occupancy and housing tenure, education, labor force, employment and unemployment, income and poverty, health insurance coverage, disability status, migration patterns, and veteran status from the 2010-2014 American Community Survey (ACS) for the 13…

Although the use of simulation to teach the sampling distribution of the mean is meant to provide students with sound conceptual understanding, it may lead them astray. We discuss a misunderstanding that can be introduced or reinforced when students who intuitively understand that "bigger samples are better" conduct a simulation to…

There is considerable research on the difficulties students have in conceptualising individual concepts of probability and statistics (see for example, Bryant & Nunes, 2012; Jones, 2005). The unit of work developed for the action research project described in this article is specifically designed to address some of these in order to help…

A jack knife is a pocket knife that is put to many tasks, because it's ready to hand. Often there could be a better tool for the job, such as a screwdriver, a scraper, or a can-opener, but these are not usually pocket items. In statistical terms, the expression implies making do with what's available. Another simile, of an extreme situation, is…

This study serves as a teaching aid for teachers of introductory statistics. The aim of this study was limited to determining various sample sizes when estimating population proportion. Tables on sample sizes were generated using a C[superscript ++] program, which depends on population size, degree of precision or error level, and confidence…

The labor force is the number of people ages 16 or older who are either working or looking for work. It does not include active-duty military personnel or the institutionalized population, such as prison inmates. Determining the size of the labor force is a way of determining how big the economy can get. The size of the labor force depends on two…

This paper explores the nation's changing child population based on data from the 2010 census. While the number of U.S. children increased only slightly, the demographic shifts within the population were considerable. Some areas of the country (Nevada and Texas) and some demographic groups (including children of mixed race) grew significantly,…

This Analysis Brief shows how per-pupil spending varies with student poverty (as measured by the percent of students eligible for free or reduced price lunch) across elementary, middle, and high schools in Pasadena Unified School District (PUSD). The authors have carried out separate analyses that make use of the California Standardized Account…

Current research demonstrates relationships between child abuse and neglect, homelessness and criminal activity. This report presents key findings from analysis of a data set linking three community-sector data collections: Supported Accommodation Assistance Program (SAAP), juvenile justice supervision, and child protection notifications and…

The federal government promised that it would limit waiver grants to states for the No Child Left Behind Act of 2001 (NCLB). It largely kept that promise, but states did gain significant flexibility through amendments to accountability plans. OLS model estimates showed that larger, more affluent, and more Republican states submitted more amendment…

This report provides a portrait of educational attainment in the United States based on data collected in the 2009 American Community Survey (ACS) and the 2005-2009 ACS 5-year estimates. It also uses data from the Annual Social and Economic Supplement (ASEC) to the Current Population Survey (CPS) collected in 2009 and earlier, as well as monthly…

We propose a nonparametric (or distribution-free) procedure for testing the equality of several population variances (or scale parameters). The proposed test is a modification of Bakir's (1989, Commun. Statist., Simul-Comp., 18, 757-775) analysis of means by ranks (ANOMR) procedure for testing the equality of several population means. A proof is…