Access¶

Learner Variable · All learner variables
Evidence · 71 claims (49 show a difference, 16 mixed, 6 no difference) · 51 studies (27 associational, 6 review, 5 causal, 4 qualitative, 4 theoretical, 3 design, 2 quant-synthesis), q1–q4 · 3 of 51 report an effect size · 67 claims rest on one study

Description¶

Whether a learner can perceive and operate the material at all: device, bandwidth, screen reader, captions, motor demands. Distinct from digital literacy, which is whether they can drive it. Access is binary in a way the other dimensions are not — a design that cannot be perceived does not teach less, it teaches nothing — which is why it is checked rather than optimised.

Implications¶

Context¶

Decides which media and interactions are usable at all, before any question of effectiveness arises.
The remedies mostly benefit everyone: captions, clear contrast and text alternatives are not a separate track.
'Everyone is issued the same device' is a real finding, and rules out a class of hedging.

Target Learners¶

Learners with sensory, motor or processing differences.
Learners on constrained devices or bandwidth — a condition of circumstance rather than of the learner.

Target Learning Objectives¶

Gates every outcome. A learner who cannot perceive the material produces no evidence about anything else.
Makes assessment invalid rather than merely harder, which is a different category of problem.

Claims¶

Mnemonic instruction improves recall for students with disabilities [+M] — a targeted response with a well-identified population
Spatial contiguity improves learning [+M] — placing related elements together lowers a demand that falls hardest here
Access and resource disparities in AI usage widen divides among postsecondary students [+M] — learners who differ on it differ in outcomes
Among 2012 disability groups, youth with intellectual disability, autism, deaf-blindness, multiple disabilities, and orthopedic impairments were most at-risk in preparation for life after high school [+M] — learners who differ on it differ in outcomes
Among eligible students, Chicago Connected participation increased remote learning engagement for high pre-pandemic GPA students but decreased it for low pre-pandemic GPA students [~M] — learners who differ on it differ in outcomes
Among students with an IEP, youth with emotional disturbance or an intellectual disability experienced more positive changes over the past decade than youth in other disability groups [+M] — learners who differ on it differ in outcomes
At each level of freshman course performance, students with disabilities and students two or more years below grade level are less likely to graduate than their non-disabled peers [+M] — learners who differ on it differ in outcomes
Auditory math access works best when the technology is familiar: Math Speak aided expression identification, and BVI students performed similarly to or slightly better than traditional methods with familiar apps [~M] — an instructional effect differs with it
Blind infants show the same developmental sequence of basic emotions as sighted infants [-M] — learners who differ on it differ in outcomes
Chicago Connected eligibility was associated with a slightly lower fall 2020 GPA in the full analytic sample, with no variation by pre-pandemic academic performance [+W] — learners who differ on it differ in outcomes
Chicago Connected eligibility was associated with higher fall 2020 engagement for high pre-pandemic GPA students but lower engagement for low pre-pandemic GPA students [~W] — learners who differ on it differ in outcomes
Congenitally blind subjects perform visual-imagery-mediated tasks with only slight deficits relative to sighted subjects [+M] — learners who differ on it differ in outcomes
Congenitally blind subjects show visual dream content with a negative correlation between Visual Activity Index and EEG alpha power [+M] — learners who differ on it differ in outcomes
CPS students with an IEP related to a learning disability graduated at a rate approaching the district average, while students with an IEP related to another disability graduated at 54.7% [+M] — learners who differ on it differ in outcomes
Deaf students plateau at fourth-grade reading skill despite prolonged schooling [+W] — learners who differ on it differ in outcomes
DHH students in grades 2–8 continue to build reading and mathematics skills and do not necessarily plateau in the elementary grades [+M] — learners who differ on it differ in outcomes
DHH students often experience systemic barriers to academic success, especially low expectations of what they know and can do [+W] — learners who differ on it differ in outcomes
Differences in engagement and achievement between high- and low-GPA students grew more sharply during the pandemic among Chicago Connected participants than among eligible non-participants [+M] — an instructional effect differs with it
Dream-content and drawing measures show almost no group differences between congenitally blind and sighted subjects [-M] — learners who differ on it differ in outcomes
During spring 2020 remote instruction, internet connectivity and hardware/software problems interfered with course participation for large shares of undergraduates [+M] — learners who differ on it differ in outcomes
English learner students with disabilities are more likely to struggle academically and less likely to participate in activities than both other students with disabilities and other English learners [+W] — learners who differ on it differ in outcomes
From 2003 to 2012, youth with disabilities showed greater school engagement and support use but became less likely to participate in some key transition activities [~M] — learners who differ on it differ in outcomes
Hearing-impaired students learn library skills quickly via the \"showand do\" demonstration method and are often misjudged as unready [+W] — an instructional effect differs with it
Higher absence rates are the most important factor explaining why students with disabilities fail more courses and earn lower GPAs than students without identified disabilities [+M] — learners who differ on it differ in outcomes
Immediately after closure, New York charter students lacked adequate devices (44.4% on average) more often than adequate internet access (27.0%), while teachers were almost universally equipped [+M] — instruction changes it
Implementation data show teachers shifted independent practice toward in-class ASSISTments assignments, a change the study links to more equitable access for rural students with limited home connectivity [+M] — instruction changes it
Instructional modifications that lower barriers are optional supports for younger resilient learners but may be necessary for older beginners, pre-literate students, and learners dealing with trauma or disabilities [~W] — an instructional effect differs with it
Math achievement of BVI students lags sighted peers and the gap widens with age [+M] — learners who differ on it differ in outcomes
Nearly half of STEM students experienced internet connectivity problems that interfered with course participation after the COVID shift to remote instruction [+M] — learners who differ on it differ in outcomes
Participants who accessed the report card site with mobile devices had more difficulty using it [+W] — learners who differ on it differ in outcomes
Reading growth trajectories of students with visual impairments trend upward at a steady pace while the gap with the national norm remains wide [+M] — learners who differ on it differ in outcomes
Reliable Internet access was a larger barrier to remote and hybrid learning than device access, especially in urban areas [+M] — learners who differ on it differ in outcomes
Schools where principals reported fewer technology barriers had higher student access and use and higher teacher access, use, assignments, and professional development [+M] — learners who differ on it differ in outcomes
Six-year graduation rates for students with behavioral and learning disabilities increased substantially between 2009 and 2019, while rates for cognitive disabilities slightly declined [+M] — learners who differ on it differ in outcomes
Students who are deaf or hard of hearing continue to grow and acquire literacy skills well into middle school when tracked across grades 2-8 [+M] — learners who differ on it differ in outcomes
Students with disabilities attained postsecondary readiness and success outcomes at about one half to one third the rate of students without disabilities, the largest difference between any student group and its counterpart [+M] — learners who differ on it differ in outcomes
Students with disabilities in grades K-4 grow as much or more academically during some school years than peers without disabilities [~M] — learners who differ on it differ in outcomes
Students with IEPs related to disabilities other than learning disabilities graduated at a far lower rate (46.4%) than students with learning-disability IEPs (77.5%) or without IEPs (84.6%) [+M] — learners who differ on it differ in outcomes
Students with learning disabilities and mild cognitive disabilities benefit less from rigorous study habits than students without identified disabilities, and for mild cognitive disabilities there is no relationship between study habits and course failures [~M] — an instructional effect differs with it
Students with visual impairments show accelerated reading growth between 9th and 10th grade while the nationally normed group tends to drop [+M] — learners who differ on it differ in outcomes
Students with visual impairments show lower initial reading achievement in third grade than the national norm [+M] — learners who differ on it differ in outcomes
The rate of reading growth for students with visual impairments is suggested to be greater than the national norm [~W] — learners who differ on it differ in outcomes
Vision is not required for developing number sense and math skills in BVI learners [-M] — learners who differ on it differ in outcomes
Visual imagery is possible without visual perception or experience [-W] — learners who differ on it differ in outcomes
In informal virtual programs, technology access was the first and most significant barrier to participating in Hero Elementary [+M] — learners who differ on it differ in outcomes
Technical issues (login scanning, internet connectivity, projector setup, and glitches) frustrated students and created a significant barrier to playlist implementation [+M] — an instructional effect differs with it
87% of TK classrooms were inclusive of students with disabilities, and most LEAs provided adaptations and additional staff, though rising special education needs strained resources [~M] — instruction changes it
87% of TK classrooms were reported as inclusive of students with disabilities, and use of instructional adaptations rose to 71% of LEAs [+M] — instruction changes it
Black students in Michigan are three times as likely as white students to have access to no CTE programs, and students with disabilities complete CTE at lower rates [+M] — learners who differ on it differ in outcomes
Lack of home computer and broadband access hinders FAFSA completion policy implementation, particularly in rural and low-income areas [+M] — learners who differ on it differ in outcomes
AI in adult education risks reinforcing existing inequalities via the digital divide, particularly for rural, low-income, and marginalized learners [+M] — an instructional effect differs with it
AIxSpeed phoneme-level adaptive playback yields higher listenability ratings than constant-speed playback at matched average speed [+M] — instruction changes it
Infrastructure barriers — limited internet speed, connectivity problems and lack of technical support — hinder effective AI use in nursing education institutions [+M] — learners who differ on it differ in outcomes
Score-access barriers push musicians with BLV toward memorization and listening-based learning, and accessible notation tools miss performance-critical details [+M] — learners who differ on it differ in outcomes
Teachers identify attendance, unreliable devices, prior academic gaps, and COVID-related disruption as compounding contextual barriers to persistence [+M] — learners who differ on it differ in outcomes
Infrastructure inequities — chronic bandwidth limitations, power outages, and device incompatibility — severely disrupt proctored assessments and exacerbate educational disadvantages in low-resource settings [+M] — learners who differ on it differ in outcomes
AI chatbot access improves the quality of teachers' learning designs in higher education [+M] — learners who differ on it differ in outcomes
AI chatbot access lowers teachers' perceived cognitive effort during learning design [+M] — learners who differ on it differ in outcomes
LLM access boosts individual story creativity while significantly homogenising output across writers (review attribution) [~M] — learners who differ on it differ in outcomes
GPT-generated hints are moderately accessible by automated readability metrics (mean CAREC 0.128, mean CML2RI 3.95) [+M] — instruction changes it
Instant access to information and 24/7 availability are the most recognised benefits of LLMs for learning [+M] — instruction changes it
Physical access to AI-provided material does not automatically produce epistemological access; facilitation converts one into the other [~W] — instruction changes it
Adolescents with cochlear implants spell significantly less accurately than hearing peers, though 55% spell within one standard deviation of them and 45% two or more below [+M] — learners who differ on it differ in outcomes
Among children with cochlear implants, later implantation correlates with more positive math self-views and longer use correlates negatively with math and scholastic self-views [~M] — learners who differ on it differ in outcomes
Child-parent concordance is no greater for hearing families than for families with deaf children [-M] — learners who differ on it differ in outcomes
Cochlear implant use is not associated with greater perceived academic or social success, and children with implants are rated lowest in reading [~M] — learners who differ on it differ in outcomes
Current adolescent characteristics including digit span, sentence duration and sign enhancement predict high school language outcomes [+M] — learners who differ on it differ in outcomes
Disabled readers produce more current nonfinal and extraneous intrusions, implicating access and restraint failures [+M] — learners who differ on it differ in outcomes
Hearing children are rated as more capable in reading and more socially successful than deaf children by both children and parents [+M] — learners who differ on it differ in outcomes
Parents rate their children as more socially successful than the children rate themselves, regardless of hearing status [-M] — an instructional effect differs with it
Poorer useful field of view performance in older adults predicts motor vehicle collision risk and difficulties in everyday visual tasks, even after adjustment for sensory and cognitive impairment [+M] — learners who differ on it differ in outcomes
Shorter duration of deafness, higher performance IQ, and lack of sign enhancement predict higher literacy in adolescents with cochlear implants [+W] — learners who differ on it differ in outcomes
Sign enhancement predicts high school language in opposite directions at elementary versus adolescent measurement [~M] — learners who differ on it differ in outcomes
Deaf and hearing children do not differ in accuracy of object counting or creating sets of a given cardinality up to 14 items [-M] — learners who differ on it differ in outcomes
Deaf children produce shorter conventional number strings in abstract counting than hearing children of the same school level, with a roughly 2-year delay [+M] — learners who differ on it differ in outcomes
Deaf children's abstract-counting errors reflect the rule-bound base-5 structure of Belgian French Sign Language: they stop at production-rule boundaries and make fewer omission errors than hearing children [+M] — learners who differ on it differ in outcomes
In object counting, deaf and hearing children make similar attention and principle errors, but deaf children make more number-string errors [~M] — learners who differ on it differ in outcomes
Linguistic delay may affect verbal mathematical abilities without impairing conceptual counting development, as deaf children's one-to-one correspondence understanding was age-appropriate [~W] — learners who differ on it differ in outcomes
Access to web-based information creates illusions of learning and reduces memorization [+M] — learners who differ on it differ in outcomes
Education appears unable to remedy severely defective sensory mechanisms such as color-blindness or tonal deafness [-W] — instruction changes it
Blind and seeing high-school pupils show about the same sensory discrimination thresholds across six touch, hearing, and kinaesthetic measures [-M] — learners who differ on it differ in outcomes

The evidence by question¶

Does a learner's device, connectivity and technical support predict whether they can take part in technology-delivered learning and assessment? During spring 2020 remote instruction, internet connectivity and hardware/software problems interfered with course participation for large shares of undergraduates [+S]
Does supplying the missing connectivity or devices close the gap for learners without access? Among eligible students, Chicago Connected participation increased remote learning engagement for high pre-pandemic GPA students but decreased it for low pre-pandemic GPA students [~M]
Do learners with visual or hearing impairments fall behind their peers, and does the gap close as schooling goes on? Math achievement of BVI students lags sighted peers and the gap widens with age [+M]
Which routes into the content work for learners with visual or hearing impairments? Auditory math access works best when the technology is familiar: Math Speak aided expression identification, and BVI students performed similarly to or slightly better than traditional methods with familiar apps [+M]

Digital literacy — whether they can operate it, as against whether they can perceive it.
Reading and language — audio routes around a decoding barrier as well as a visual one.
Working memory — accommodations often work by removing a load rather than by adding support.

Examples¶

Accommodations — the element that names the adjustment
Specific Learning Disabilities — the population-specific considerations
Audiobooks — an alternative route to the same content
Accessible Syntax — lowers linguistic demand without lowering content
Audiobooks — the strategy form
Audio + Structured Activity — pairs an audio route with a task that does not assume reading
Design systems to accommodate low bandwidth limitations by using fewer graphics and media

Key Sources¶

The evidence is carried by the claim pages linked above, each holding its own ## Evidence entries with q/i codes and DOIs checked against Crossref. Citations are deliberately not duplicated here — a second copy is a second thing to keep correct.

Page metadata

Field	Value
`type`	`learner-variable`
`id`	`access`
`title`	`Access`
`description`	`Whether a learner can perceive and operate the material at all — device, bandwidth, sensory and motor.`
`status`	`review`
`canonical`	`True`
`generated`	by `claude/unspecified` on `2026-09-02`
`trust`	unverified — no one has confirmed this page's content

Frontmatter is the page's machine-readable record — see the Schema & Guide.