Study Guide

CASLI Gap Test: What Transition Candidates Should Expect

A source-based guide to the CASLI Case Studies Exam, also called the Gap Test: who takes it during the NIC and CDI transition, how its multi-step scenarios work, and the official preparation materials that matter.

Updated September 20269 min readStudy GuideSign Interpreter Prep
Rebecca Hill

Rebecca Hill

Sign Interpreter Prep Editorial Team

The CASLI Gap Test is the Ethical Decision Making and Cultural Responsiveness Case Studies Exam, given to transition candidates who passed an earlier NIC or CDI knowledge exam, have an active CASLI testing cycle, and are moving to the Generalist Performance Exams. It contains eight multi-step case studies presented in ASL with written English response options. At each step you select every action that is necessary now, and you cannot return to earlier steps. Results arrive by email in about ten business days; if you fail this portion, you retake only it after a three-month wait.

Which transition candidates take the Gap Test

The Gap Test serves eligible earlier NIC or CDI knowledge-exam passers whose CASLI testing cycle remains active. Candidates who have passed both portions of the current Generalist Knowledge Exam do not need it again.

CASLI uses Generalist Gap Test for the Ethical Decision Making and Cultural Responsiveness Case Studies taken through the legacy bridge route. Earlier NIC Knowledge passers with a confirmed active cycle take it with the Generalist Performance Exam: NIC.

For the CDI route, an earlier CDI Knowledge pass and an active testing cycle may leave the bridge learning module, Case Studies and performance requirements to complete. Have CASLI check your actual record; old transition date tables do not establish your eligibility today.

The clearest shortcut: if you have taken and passed the current CASLI Generalist Knowledge Exam, CASLI states you do not need the Gap Test. Your Case Studies requirement was already part of that exam.

One caution before you purchase anything. The transition pages describing these rules date from the 2020-2023 transition period, and CASLI has continued posting updates since. Confirm your own status and remaining components with CASLI before you pay for an exam.

Official sources: For NIC Candidates - Center for Assessment of Sign Language Interpreters; For CDI Candidates - Center for Assessment of Sign Language Interpreters; Testing Process Cycles - Center for Assessment of Sign Language Interpreters

The real format: eight multi-step case studies

This is a selected-response exam, not an essay or interview. Eight case studies are presented in ASL narrative with written English option lists, and each case unfolds in steps you answer in order.

In each case you watch an ASL narrative, then choose the best option or options from a written English list. Select only actions necessary at that step; leave out actions that are unneeded, premature or inappropriate.

Each case is multi-step. Once you submit a step and advance, you cannot return to change it. Read each new development before selecting the next actions; the outline does not say that your choices change the storyline.

The ASL narrative and English options require comprehension of both languages. Practise understanding the situation before deciding which actions it requires.

Confirm the current appointment duration in the CASLI Exam Candidate Handbook or with CASLI before scheduling.

Official sources: CASLI Generalist Exam Content Outline and Preparation Guide — Full DOCX recovered from the official preparation page; For NIC Candidates - Center for Assessment of Sign Language Interpreters; Exam Results and Retakes - Center for Assessment of Sign Language Interpreters

What the case studies assess

The scenarios test ethical decision-making and cultural competence applied to realistic interpreting situations, from spotting conflicts of interest to maintaining confidentiality and boundaries.

CASLI describes the scenarios as evolving situations that assess cross-cultural communication, awareness of cultural and systemic oppression, and your ability to assess your own cultural competence for an assignment. Individual answer options may test your recognition of conflicts of interest or their appearance, power dynamics in different settings, quiet compromises of ethical standards such as on social media, and your ability to apply ethical standards to the facts given.

CASLI also lists the concrete abilities a candidate should demonstrate: determine whether the event fits your skill set, verify that no conflict of interest exists, assess your personal cultural competence, evaluate the skills, needs and preferences of Deaf and hearing participants, protect confidentiality where appropriate, and maintain boundaries under professional conduct standards.

Use the listed abilities to explain your choices: which fact raises a skill-fit, conflict, confidentiality or boundary issue, and which option addresses it at this step?

  • Does the assignment fit your skill set, and is any conflict of interest present?
  • Do you understand the needs, preferences and power dynamics among participants?
  • Which actions protect confidentiality and professional boundaries right now?
  • Which tempting actions are simply not needed, or not needed yet?

Official sources: CASLI Generalist Exam Content Outline and Preparation Guide — Full DOCX recovered from the official preparation page

How the selection logic works: a two-step example

Correct responses select every action the current step requires and nothing else. Practice by sorting options into necessary, not yet needed, and inappropriate.

This original text exercise illustrates the selection sequence; the actual case narratives are in ASL. Use only the facts and practice rules supplied, then decide before advancing.

Practice example

Use these rules for this fictional agency: before accepting, establish whether the assignment fits your skills and the participant's communication needs. If a necessary fact is missing, obtain it first. If an assignment is beyond your skills, tell the agency and request a qualified replacement before accepting. Step 1. You are offered an assignment described only as a community workshop. No information about its subject or the participant's communication preferences is available. Select all actions needed now. A. Ask the agency for the workshop subject and communication needs. B. Accept because all community workshops require the same skills. C. Decline without seeking the missing information. D. Advertise the participant's name online to find out more. Step 2. The agency supplies the information. You determine that the required skills are beyond your present competence, and you have not accepted. Select all actions needed now. A. Tell the agency that the assignment is beyond your skills. B. Request a suitably qualified replacement. C. Accept and hope the difficult material does not arise. D. Decide that the participant must change communication preferences.

Show answer

Step 1: A only. Step 2: A and B.

At Step 1, A obtains facts required by the stated assessment rule. B assumes the answer, C skips the available assessment step, and D makes an unnecessary public disclosure. At Step 2, A and B follow the supplied rule for an assignment beyond your skills; C ignores the known mismatch and D substitutes your preference for the participant's needs. This exercise illustrates the outline's skill-fit and consumer-needs topics. It does not establish an agency policy for every real assignment.

Official sources: CASLI Generalist Exam Content Outline and Preparation Guide — Full DOCX recovered from the official preparation page

The legacy CDI bridge module, if it applies to you

Some CDI transition candidates complete a short, unscored learning module before the Gap Test. It applies only to candidates who passed the old CDI Knowledge Exam, not to current Generalist Knowledge Exam passers.

The module is self-paced and covers three knowledge areas: mandated reporting laws, use of personal protective equipment that does not hinder communication, and working with interpreters who use languages other than ASL or English. You confirm completion to CASLI, and it is not scored.

Candidates who passed both portions of the current Generalist Knowledge Exam do not need the legacy bridge module or an additional Gap Test. A candidate who passed Fundamentals but still needs Case Studies must complete that remaining portion.

If you are unsure whether the module applies to your record, ask CASLI before scheduling. Completing or skipping it incorrectly can delay your performance-exam eligibility.

Official sources: For CDI Candidates - Center for Assessment of Sign Language Interpreters; Exam Results and Retakes - Center for Assessment of Sign Language Interpreters

Results, retakes and your five-year window

Expect Gap Test results by email within about ten business days. If you fail this portion, you retake only it, after a three-month wait that starts on your original exam date.

CASLI estimates Case Studies Exam results within ten business days of your test date. That estimate applies to the knowledge-side exams generally, and the Gap Test is that same case-studies component administered on its own.

The knowledge-exam retake rules govern this portion: after a failed part, you may apply and pay for a retake once a three-month required waiting period has passed, counted from the date you originally took the exam, not from when results arrived. If you passed one part of the knowledge exam and failed the other, you retake only the part you failed.

Your overall certification timing follows a five-year testing cycle: candidates must pass all required exams within five years from the date of their first passing result, and RID requires the educational qualification within that same window. CASLI has historically granted extensions during the exam transition and the COVID-19 pandemic, but those are documented accommodations of that period, not a formula you can apply to your own record. If your window is short, contact CASLI to confirm your remaining time before you purchase or schedule anything.

Official sources: Exam Results and Retakes - Center for Assessment of Sign Language Interpreters; Available Certifications - Registry of Interpreters for the Deaf, Inc.; Testing Process Cycles - Center for Assessment of Sign Language Interpreters

Preparing with the official materials

CASLI's own preparation guide gives you a concrete sequence: read the candidate handbook, review the content outline and job task analyses, practice with the sample exam, and use the recommended reading list as background rather than a question bank.

Start with the CASLI Exam Candidate Handbook, then review the Generalist Exam Content Outline and the NIC and Deaf Interpreter Job Task Analyses, which are the blueprints the exams were built from. CASLI suggests self-assessing your knowledge, skills and abilities against those documents and working with a language or interpreting mentor where you find gaps.

For the case studies specifically, the most format-relevant practice CASLI offers is the Take a Sample Exam feature in the CASLI Exam System. It familiarizes you with the interface, instructions, navigation and item layout, which matters here because you cannot return to earlier steps.

The recommended reading list in the preparation guide covers Deaf culture, ethics and interpreting practice, and includes the RID-NAD Code of Professional Conduct. CASLI states plainly that test items are not necessarily taken directly from these sources and that the list is not comprehensive. Treat it as professional development, not memorization material.

On the administrative side, submit eligibility documents, create your RID Member ID and CASLI Exam System accounts, and request your exam. If you need ADA accommodations, send that request 30 days or more before you schedule.

  • Read the CASLI Exam Candidate Handbook.
  • Review the Generalist Exam Content Outline and both Job Task Analyses.
  • Use Take a Sample Exam in the CASLI Exam System to learn the interface.
  • Read the RID-NAD Code of Professional Conduct and the recommended background list.
  • Request accommodations 30 or more days before scheduling.

Official sources: CASLI Generalist Exam Content Outline and Preparation Guide — Full DOCX recovered from the official preparation page

Your next steps

Confirm which components your record still needs, verify your testing-cycle time, then prepare with the official outline and sample exam before scheduling.

The decisive fact for most readers is simple: legacy NIC and CDI knowledge-exam passers with active cycles take the Gap Test alongside the Generalist Performance Exam, while passers of the current Generalist Knowledge Exam already covered this content and move on.

Before purchasing, email CASLI to confirm your cycle status, remaining components and any module requirement. Then work through the handbook, outline and sample exam so that the multi-step, no-back-navigation format holds no surprises on test day.

Official sources: For NIC Candidates - Center for Assessment of Sign Language Interpreters; For CDI Candidates - Center for Assessment of Sign Language Interpreters

Official sources

Facts checked:

Next steps

FAQ

Frequently Asked Questions

Practical answers to help you apply the guidance for CASLI Case Studies Exam / Gap Test for Eligible Transition Candidates.

Is the Gap Test an essay exam or an interview?
No. It is a computer-based selected-response exam: eight multi-step case studies presented in ASL narrative, where you choose the best option or options from written English lists. There is no writing or live interview component.
I passed the current CASLI Generalist Knowledge Exam. Do I also need the Gap Test?
No. The Case Studies portion was already inside that exam, and CASLI states that candidates who passed it do not need to take the Gap Test. The Gap Test is specifically for candidates bridging from the earlier NIC or CDI knowledge exams to the new performance exams.
What happens if I fail the Gap Test but passed the performance exam, or the other way around?
The case-studies portion follows the knowledge-exam retake rules: a three-month wait from your original exam date, and you retake only the portion you failed. A failed performance exam carries its own six-month wait. If a retake's waiting period pushes against your five-year window, confirm your remaining cycle time with CASLI before scheduling.

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