Book, papers, study
Research
A single research program: name the gap, define it, measure it, and test it with real people in three languages.
The book
From Cognitive Load to Cognitive Distance
Reframing usability and accessibility in information systems. 118 pagesReceipt118 pagesLength of the bookMethodPage count of the free online edition and PDF.Sourcebook.izaias.xyzChecked, 13 chaptersReceipt13 chaptersChapters in the bookMethodCounted from the table of contents.Sourcebook.izaias.xyz/readChecked, 66 cited worksReceipt66 cited worksReference listMethodCounted from the references page.Sourcebook.izaias.xyz/read/referencesChecked. Self published, free to read.
Paperback and Kindle coming soon.
Papers
All papers- 2026Cognitive Distance in Information Systems: From Concept to Measurement to Field EvidenceIn peer review
- 2026Users Complete Tasks but Still Cannot Explain Why: Measuring Cognitive Distance in Information SystemsPreprint
- 2026Cognitive Distance in Document Submission Systems: Why Users Struggle with Simple Digital TasksPreprint
- 2026Measuring Cognitive Distance in Information Systems: Toward an Operational FrameworkPreprint
The experiment
Everyday Services Study
Three simulated tasks (a bank transfer, a medical appointment, a licence renewal) in English, Spanish or Portuguese.Receiptthree tasks, three languagesEveryday Services Study designMethodBank transfer, medical appointment and licence renewal, in English, Spanish and Portuguese.Sourceeverydayservices.studyChecked Same flows; only the wording changes, plain or institutional.
In the pilot (descriptive only), the plain-language arm scored about 1 on the CDI and the institutional arm about 38. Inferential results are pending peer review.Receiptabout 1 and about 38Pilot CDI by arm (descriptive)MethodFriends and family pilot, descriptive only. No inferential claim is made.SourceEveryday Services Study pilot write-up; résumé fact base (2026-08-10)Checked
Fifteen minutes. Three everyday tasks. Help measure the distance.
Profiles
- Google Scholar
- ResearchGate (as Izaias Cavalcanti, USP EACH)
- Preprint DOI