This dissertation examines the landmark case Larry P. v. Riles and its impact on addressing the disproportionality and overrepresentation of Black and/or African American students in special education within California. Despite the court's ruling, which prohibited the use of IQ tests for Black students for special education placement due to…

A court decision in California, Larry P. v. Riles (1979) case, ruled in favor of African American students who were disproportionately and wrongly placed in special education (E.M.R. -- educable mentally retarded) classes. Standardized intelligence tests were biased, discriminatory and failed to identify the academic need to support African…

The Larry P. v. Riles case highlighted the disproportional representation of Black students in special education and called for the need of fair and nondiscriminatory psychological and educational evaluations. Despite the longstanding ban of the use of cognitive assessments with Black children in the state of California, Black children continue to…

This study reports an independent investigation of the psychometric properties of Desired Results Developmental Profile (DRDP), a teacher-rated measure of school readiness for preschool-aged children. In a sample of 2,031 low-income, 3- to 5-year-old children attending Head Start, we tested three measurement models: a higher order one-factor…

One of the major claims of the report of University of California's Task Force on Standardized Testing is that SAT and ACT scores are superior to high-school grades in predicting how students will perform at UC. This finding has been widely reported in the news media and cited in several editorials favoring UC's continued use of SAT/ACT scores in…

This study reports an independent investigation of the psychometric properties of Desired Results Developmental Profile (DRDP), a teacher-rated measure of school readiness for preschool-aged children. In a sample of 2,031 low-income, 3- to 5-year-old children attending Head Start, we tested three measurement models: a higher order one-factor…

On May 21, 2020, the University of California (UC) Board of Regents unanimously approved the suspension of the standardized test requirement (ACT/SAT) for all California freshman applicants until fall 2024. UC plans to create a new test that better aligns with the content the University expects students to have mastered for college readiness.…

We illustrate the application of mixture IRT [item response theory] models to evaluate the possibility of respondent confusion due to the negative wording of certain items on a social-emotional learning (SEL) assessment. Using actual student self-report ratings on four social-emotional learning scales collected from students in grades 3-12 from…

The population of Spanish-speaking preschoolers in the United States continues to increase and there is a significant need to develop psychometrically sound early language and literacy screening measures to accurately capture children's ability in Spanish. In this paper, we describe the innovative design and calibration process of the new…

With an increased appreciation of students' social-emotional skills among researchers and policy makers, many states and school districts are moving toward a systematic process to measure Social-Emotional Learning (SEL). In this study, we examine the measurement properties of California's CORE Districts' SEL survey administered to over 400,000…

Orthographic processing -- the ability to perceive, access, differentiate, and manipulate orthographic knowledge -- is essential when learning to recognize words. Despite its critical importance in literacy acquisition, the field lacks a tool to assess this essential cognitive ability. The goal of this study was to design a computer-based…

The Mathematics Fluency and Calculation Tests (MFaCTs) are a series of measures designed to assess for arithmetic calculation skills and calculation fluency in children ages 6 through 18. There are five main purposes of the MFaCTs: (1) identifying students who are behind in basic math fact automaticity; (2) evaluating possible delays in arithmetic…

The SAT is used for two purposes at the University of California. First is "eligibility": Determining whether applicants meet the minimum requirements for admission to the UC system. Second is "admissions selection": At high-demand campuses such as Berkeley, with many more eligible applicants than places available, test scores…

Other than being African American, little is known of Larry, the lead plaintiff in the legal case known as "Larry P. v. Riles" in 1971, which banned the use of standardized intelligence testing on African-American students in the State of California. As a result of such intelligence testing, Larry was diagnosed as being mildly mentally…

A little over 35 years have passed since the original "Larry P." decision was handed down in 1979 by Robert Peckham, a federal judge for the US District Court for the Northern District of California. The "Larry P. case" is a shorthand moniker that refers to a class action lawsuit, supported by the Bay Area Association of Black…