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Accessibility and Accommodations
Augmentative and Alternative Communication Device (AAC device)
Augmentative and alternative communication devices are aided methods of communication used to support persons with developmental disabilities whose speech is insufficient to meet their daily communication needs. Augmentative and alternative communication devices may include displays (e.g., picture books), assistive technology, or computerized speech generating devices.Accessibility
Accessibility is a system of approaches and supports that ensures fair and equitable access to instructional and assessment content, processes, and procedures by meeting the individual needs and preferences of all students, regardless of their characteristics. Such characteristics can include but are not limited to age, beliefs, disability, education, ethnicity, gender, language, nationality, neurodiversity, place of origin, race, sexual orientation, physical appearance, Indigenous or Native status, socioeconomic status, professional experience, and communication style.Accommodations
Accommodations are changes in procedures or materials that increase equitable access during testing and generate valid assessment results for students who need the changes. Accommodations allow for variation in instructional and assessment materials so that students can show what they know and can do. Assessment accommodations should not violate the construct being measured.Assistive Technology
Assistive technology devices are identified in the Assistive Technology Act of 2004 as “any item, piece of equipment, or product system, whether acquired commercially, modified, or customized, that is used to increase, maintain, or improve the functional capabilities of individuals with disabilities.” Assistive technology can refer to any low- or high-tech tool (or set of tools) required to support an individual's communicative, academic, and/or adaptive needs, along with resources required by the individual and their caregivers to choose and use that technology as needed.Assistive Listening Device (ALD)
An assistive listening device is any device that helps a person to hear clearly. Assistive listening devices can help individuals with sound discrimination and/or focus when there is background noise and “can be used with or without hearing aids or a cochlear implant.”Color Contrast
Color contrast is a feature of a computer-based assessment, allowing changes to the colors of text and background to support the needs of students who have issues with visual impairments or text-based disabilities.Custom Overlays
Custom overlays are flexible, adaptable layers placed on top of a programmable input device, such as a membrane keyboard. With the custom overlay, the user is able to display any symbols, colors, numbers, or words to suit their needs.Masking
For computer-delivered assessments, masking is an embedded support that allows students to block off content that is unnecessary or potentially distracting. Students can focus their attention on a specific part of the test item by masking.Modifications
Modifications are changes to the quality and/or quantity of content and related assessments provided to students. These changes can significantly decrease students’ access to the full range of standards-based instruction that peers receive, and invalidate assessments based on those standards. Modifications can involve eliminating objectives or significant parts of content, removing the most difficult questions on an assessment, providing support with a skill that is being assessed (e.g., using read-aloud on a reading assessment), or providing students with substantive help with an assignment or assessment.Picture Exchange Communication System (PECS)
The Picture Exchange Communication System uses picture symbols and applied behavior analysis to teach communication skills. Individuals with autism and other disabilities can use the Picture Exchange Communication System to communicate requests, responses, and comments via cards with pictures and/or symbols. The Picture Exchange Communication System can be used in low- and high-tech formats.Read Aloud
Read aloud is an accommodation that allows a qualified educator or proctor to read assessment content.Scribe
A scribe typically is an experienced educator who records verbatim students’ responses to an assessment or other classroom task on an electronic device or on paper. Scribes may be used by students who need support with creation of texts because of motor or neurological disabilities, (e.g., dyslexia) or who have had an injury that temporarily makes it difficult to create text physically.Simplified Syntax
Simplified syntax refers to one clause output that contains a subject and predicate. Simplified syntax is also known as simple syntax.Speech-Generating Device (SGD)
A speech-generating device is a portable device that produces previously recorded or digitized messages when activated by the individual. Speech generating devices support a variety of communicative functions, including making requests and answering questions. Speech-generating devices vary in the number of communicative options and the methods in which messages are activated. For example, a speech generating device may include one button that can be pressed to request a single stimulus or multiple buttons that allow an individual to select a message from a wider array of options.Speech-to-Text (STT)
Speech-to-text is a function on an app, word processing program, or assistive technology device that allows a student to create text for test responses and other purposes. It may be used by students who need support with creation of texts because of motor or neurological disabilities (e.g., dyslexia) or who have had an injury that temporarily makes it difficult to create text physically.Supplementary Aids and Services
The Individuals with Disabilities Education Act of 2004 defines supplementary aids and services as “aids, services, and other supports that are provided in regular education classes, other education-related settings, and in extracurricular and nonacademic settings, to enable children with disabilities to be educated with non-disabled children to the maximum extent appropriate.”Switches
Switches, or adaptive switches, are assistive devices that enhance the lives of persons with limited motor skills by allowing for their increased and/or improved involvement in everyday activities. (e.g., communicating, eating, playing).Symbol-Based Augmentative and Alternative Communication System (Symbol-Based AAC)
The use of a symbol-based augmentative and alternative communication system (text) may start with an augmentative and alternative communication system that has symbols and crucial words for communication. Over time, people with extensive communication needs may begin to use text in a way that makes keyboarding an effective way to communicate.Text-to-Speech (TTS)
Text-to-speech is a type of speech-synthesis assistive technology that makes text accessible by reading it aloud. Text-to-speech may be used by students instructionally or during assessments.Universal Design for Assessment (UDA)
Universal design for assessment is a field within the broader universal design movement that applies the principles of universal design specifically to assessments. The goal of universal design for assessment is to ensure that the assessments are accurate and equally fair for all student populations, including English learners and students with significant disabilities. The National Center on Educational Outcomes “developed seven elements of universally designed assessments” that can be implemented “to increase assessment validity” and improve tests for all students.Universal Design for Learning (UDL)
Universal design for learning, also known as universal design for instruction, stemmed from the field of universal design. It provides a framework that calls for creating learning materials that are usable by all students and offers multiple ways of learning information, demonstrating knowledge, and engaging learners by integrating their interests, preferences, and abilities.Assessment
Achievement Level Descriptors (ALDs)
Achievement level descriptors connect a specific ability/task with the varying levels of performance on an assessment and show how one level of achievement is different from another.Achievement Level Indicators (ALIs)
Achievement level indicators are the labels given to each performance level (e.g., entering, bridging, reaching). Achievement level indicators are often determined by standard setting.Alternate Assessment Based on Alternate Achievement Standards (AA-AAS)
Alternate assessment based on alternate achievement standards is for students with the most significant cognitive disabilities. This assessment is based on the same content assessed by grade-level peers but with changes to depth, breadth, and/or complexity. These assessments describe achievement based on state determination of high expectations for students with the most significant cognitive disabilities.Alternate Assessment Based on Grade-Level Achievement Standards (AA-GLAS)
Alternate assessments based on grade-level achievement standards addresses the same content and the same expectations as a general assessment for eligible students. States are required to document that the results from an alternative assessment based on grade-level achievement standards are comparable in meaning to results from the general assessment for the same grade level.Alternate English Language Proficiency Assessment (AELPA or Alt-ELPA)
Alternate English language proficiency assessments are for students with the most significant cognitive disabilities who are also English learners. These assessments measure alternate achievement standards in English language proficiency.Assessment
Assessment is a broad term that can refer to formal or informal attempts to understand what a student can do academically and/or functionally. Assessment can be used to learn about and support student strengths and areas of growth so that educators can individualize academic and other supports. Depending upon need and function, assessments can be created by a variety of educators, local/state educational agencies, universities, and private companies. Additionally, federal legislation guides the use of assessments to meet accountability measures.Bias, Sensitivity, and Content Review (BSC)
Bias, sensitivity, and content review is a process within assessment development that helps to ensure items are fair and equitable so that the assessment is as inclusive as possible so that all participants can demonstrate their knowledge and skills. The purpose of a bias, sensitivity, and content review is to ensure that items do not contain irrelevant information that can be distracting or confusing to any subgroup of the population tested.Common Core State Standards (CCSS)
The Common Core State Standards are developed from a 2010 educational initiative that sought to better prepare students for college and careers. This initiative was sponsored by the National Governors Association and the Council of Chief State School officers. The standards detail what K–12 students are expected to know in English language arts and mathematics at the conclusion of each grade level.Computerized Adaptive Test (CAT)
A computerized adaptive test successfully selects questions based on what is known about the examinee from previous questions. For example, if an examinee performs well on one item of intermediate difficulty, the examinee will then be presented with a more difficult question. Or, if the examinee performs poorly, the examinee will then be presented with an easier question. Compared to static multiple-choice tests with a fixed set of items administered to all examinees, computer-adaptive tests usually require fewer test items to arrive at equally precise scores.Criterion-Referenced Test (CRT)
A criterion-referenced test measures how well an individual performs in relation to a specific standard or a set of standards, rather than in relation to a group of test-takers.Cut Score
Cut scores refer to a specified point on a score scale, such that scores at or above that point are reported, interpreted, or acted upon differently from scores below that point. Cut scores may be used to categorize a number of participants or to classify participants into distinct categories (e.g., diagnostic categories, proficiency levels, or proficient/nonproficient).Differential Item Functioning (DIF)
Differential item functioning is a statistical method used to detect bias in test items. When an item is labeled as having differential item functioning, persons belonging to different groups who have the same level of ability do not have the same probability of choosing the correct response.Formative Assessment
Formative assessment is a set of formal and informal actions that educators make during teaching to determine necessary changes in their practice for improved student learning. The main purpose of formative assessment is to help keep track of student progress. With results from formative assessments, educators can note where students might be having difficulty so that problems can be addressed quickly.Interim Assessment
An interim assessment is a form of assessment that educators use to evaluate student learning and progress that can help predict students’ ability to succeed on future educational tasks, such as standardized tests. Interim assessments can also help educators diagnose gaps in students’ learning.Item Template
Item templates provide specifications for writing items when developing an assessment. Examples of these specifications include item format, variables that can be altered, and scoring criteria. Item templates are the basis for multiple assessment items.Norm-Referenced Test
A norm-referenced test shows a student’s performance in relationship to others who have previously taken the assessment. The intent of a norm-referenced test is to measure a construct. (e.g., language proficiency) and identify students’ relative rank within that construct. Score interpretations are a comparison of a test-taker’s performance with the distribution of performance in a specified reference population.Performance Level Descriptors (PLDs)
Performance level descriptors describe the level of knowledge and skills required of students at each performance level for a given content area and grade level. Performance level descriptors provide a snapshot of students’ academic characteristics based on performance on any given assessment. Performance level descriptors assist teachers and schools in better understanding students’ performance on assessments and help families gain insights into their child's academic progress and performance.Performance Standards/Performance Indicators
Performance standards (also known as performance indicators), describe what level of performance is sufficient for students to be described as meeting some performance level(e.g., exceeds standards, meets standards, needs improvement).Proficiency Level Descriptors (PLDs)
Proficiency level descriptors provide explanations of the levels of English language knowledge and the skills associated with each proficiency level. They provide an overview of the stages of English language development through which English learners are expected to progress.Standards
Standards describe what students are expected to know and be able to do at a specific stage in their education, (i.e., each grade level). An example of standards includes the WIDA English Language Development Standards Framework, 2020 edition.Summative Assessment
Summative assessments are given to students periodically, typically annually, to evaluate their performance against defined set of standards. In the K–12 system, summative assessments are given in English language arts, mathematics, and other content areas at the end of specific grades.Test Blueprint
A test blueprint is created at the onset of developing an assessment. It provides a map of what is assessed by aligning assessment items with specific content and appropriate skills. It also maps the different levels of learning being assessed, such as comprehension of content and application of content.Testlet
A testlet is defined as an aggregation of items that are based on a single large stimulus, such as a reading passage or a table of numbers.User Acceptance Testing (UAT)
User acceptance testing is a process that helps verify that an intervention or assessment works as intended. It focuses on the user experience. User acceptance testing is typically done for online assessments.Braille
Braille
Braille is a tactile writing and reading code typically used by people who are blind or have low vision.Contracted Braille (Braille, as in Grade 2 braille)
Contracted braille permits contractions that combine letters and symbols to represent high-frequency words or groups of letters. There are 180 braille contractions in Unified English Braille (UEB).English Braille American Edition (EBAE)
English Braille American Edition was the official literary code of braille used in the United States prior to January 2016.Nemeth Code
Nemeth Code is a technical braille code used in mathematical or scientific notation. Nemeth Code was the official technical code in the United States prior to January 2016. This code may still be used alongside Unified English Braille; however, Unified English Braille is also able to render mathematical and scientific notation and is now considered an official technical braille code in addition to Nemeth Code.Refreshable Braille Display
Refreshable braille display uses a device with pins that raise and lower within braille cells to render information from a computer screen in a tactile manner for individuals who are blind or have low vision. The refreshable braille display is used in conjunction with screen reader software. The individual uses a braille keyboard, command keys, cursor routing keys, or screen reader commands to read the information on the screen and input information.Tactile Graphic
Tactile graphics are a means of conveying non-textual information to people who are blind or have low vision, and may include tactile representations of pictures, maps, graphs, diagrams, and other images.Uncontracted Braille (Braille, as in Grade 1 braille)
Uncontracted braille uses an individual braille character for each letter, number, or punctuation mark and does not permit the use of braille contractions. Uncontracted braille is useful when braille readers are not yet proficient in contracted braille or when contracted braille may cause confusion.Unified English Braille (UEB)
Unified English Braille is a braille code used in many English-speaking countries. It was developed by the International Council on English Braille. All subject matter, with the exception of music, can be coded using Unified English Braille. The United States fully implemented Unified English Braille in January 2016, replacing the English Braille American Edition. Technical materials in Unified English Braille, such as mathematics and science, can be referred to as Unified English, Braille Math/Science, or Unified English Braille Technical.Federal Legislation and Regulations
Brookhart v. Illinois State Board of Education (Brookhart decision)
The 1983 Brookhart v. Illinois State Board of Education decision addresses competency standards for attaining a high school diploma for students with disabilities. This case ruled that students with disabilities are entitled to assessment accommodations that consider their specific disabilities.Castañeda v. Pickard
The Castañeda v. Pickard case was initially tried in the United States District Court for the southern District of Texas in 1978. In 1981, an appeals court found in favor of Roy Castañeda, the father of two Mexican-American students, and against the Raymondville Independent School District. A major outcome from this case is the Castañeda standard, which requires programs for English learners to be “(1) based on sound educational theory, (2) implemented effectively with sufficient resources and personnel,” and (3) evaluated to determine whether they are effective in helping students overcome language barriers.Child Find
Child Find is a federal mandate in the Individuals with Disabilities Education Act of 2004. This requires states to have procedures in place to identify, locate, and evaluate all children under 21 who are suspected of having a disability. A variety of methods may be used to locate and identify these children, including physical and electronic mail, publicity, and/or face-to-face outreach designed to reach the intended population.Child with a Disability (CWD)
According to the Individuals with Disabilities Education Act of 2004, a child with a disability has “intellectual disabilities, hearing impairments (including deafness), speech or language impairments, visual impairments (including blindness), serious emotional disturbance (also referred to as ‘emotional disturbance’), orthopedic impairments, autism, traumatic brain injury, other health impairments, or specific learning disabilities” and, as a result, requires special education services.Disability Categories
The Individuals with Disabilities Education Act of 2004 lists 13 disability categories under which children and youth aged 3–21 may be eligible for services:- Autism
- Deaf-blindness
- Deafness
- Emotional disturbance
- Hearing impairment
- Intellectual disability
- Multiple disabilities
- Orthopedic impairment
- Other health impairment
- Specific learning disability
- Speech or language impairment
- Traumatic brain injury
- Visual impairment (including blindness)
Elementary and Secondary Education Act (ESEA)
The Elementary and Secondary Education Act is the primary federal law guiding K–12 education. Originally enacted in 1965, the Elementary and Secondary Education Act has been reauthorized several times, including in 2001 as the No Child Left Behind Act. In 2015, the Elementary and Secondary Education Act was reauthorized and amended as the Every Student Succeeds Act, which replaced No Child Left Behind.Endrew F. v. Douglas County School District (Endrew F. decision)
The Endrew F. v. Douglas County School District case was litigated in 2017. In this case, the U.S. Supreme Court ruled that individualized education programs must provide students who have disabilities with more than the minimal education benefit, and that a “child’s educational program must be appropriately ambitious in light of their circumstances.”English Language Proficiency Indicator (ELP Indicator)
An English language proficiency indicator is a measure of student progress in achieving English language proficiency. It is one of the five accountability indicators that are part of the Every Student Succeeds Act.Every Student Succeeds Act (ESSA)
The Every Student Succeeds Act was enacted in 2015 as a reauthorization of the Elementary and Secondary Education Act. Among the provisions of the Every Student Succeeds Act is the requirement, for the first time, “that all students be taught to high academic standards that will prepare them to succeed in college and careers.”Individuals with Disabilities Education Act (IDEA)
Originally enacted in 1975, as the Education of Handicapped Children Act, the Individuals with Disabilities Education Act was most recently reauthorized in 2004, and amended through the Every Student Succeeds Act in December of 2015. The Individuals with Disabilities Education Act ensures that eligible children with disabilities have access to free, appropriate public education via individualized special education and related services. Part A of the act covers the general provisions of the law; Part B addresses assistance for the education of all children with disabilities; Part C includes a range of programs, (e.g., Child Find) and services for infants and toddlers (up to age three); and Part D consists of programs administered at the federal level.Individualized Education Program (IEP)
An individualized education program is required for children in public schools who receive special education services under the Individuals with Disabilities Education Act. The individualized education program is created through a collaborative process involving parents, administrators, service providers and students, (when possible). It guides the delivery of supports and services for individual students. The individualized education program is required to be reviewed for appropriateness to student needs and revised accordingly at least once per year.Lau v. Nichols
Lau v. Nichols was a 1974 decision of the U.S. Supreme Court that held that schools that did not teach English to non-English speaking students were in violation of the Civil Rights Act of 1964.Measurable Annual Goals
The Every Student Succeeds Act requires annual reporting by states on specified accountability standards. The three main reports include:- Progress on long-term and interim progress goals.
- Progress on summative, systematic measures and on specific indicators within school and subgroups.
- Finding schools that require “Comprehensive and Targeted Support and Intervention.”