Start a scenario
Choose written practice or Decision Arcade and work through CASPer-style judgment prompts under realistic time pressure.
Practice mode
Written practiceScenario
Lab Partner Shortcut
You and a classmate are preparing samples for a physiology lab. Near the end of the session, your classmate suggests skipping one calibration step because the previous group's numbers looked normal and everyone is tired. The lab report will be graded as a pair, and your classmate says speaking up will make you both look slow.
AI grading trained from our CASPer expertiseIn our internal reviews, BDALab AI has reliably rated responses within one quartile of real CASPer-style grading.
Practice flow
How BDALab works
A focused CASPer routine: realistic prompts, timed answers, instant feedback, and optional human grading when you want a second set of eyes.
Answer like test day
Practice structuring clear, empathetic responses with concrete actions, tradeoffs, and professional reasoning.
Review your score
Get quartile-style feedback, strengths, improvement notes, and a saved history you can use to track progress.
Feedback report
What you get back
Every completed attempt turns into a practical report you can act on before your next session.
Quartile-style score
See where the response lands and how close it is to the kind of answer expected in CASPer-style grading.
Strengths
Identify what already works, from empathy and fairness to clarity, structure, and practical next steps.
Improvement targets
Get specific notes on what to sharpen next instead of vague advice that is hard to apply.
Question-by-question feedback
Review each response separately so you can spot patterns across your reasoning and communication.
Progress history
Save attempts to your profile and compare your scores over time as your answers become more consistent.
Human review option
Use credits to send a full attempt to a real 4th-quartile CASPer tutor for detailed review.
Why BDALab
The BDALab difference
Built for CASPer-style preparation, not generic interview practice or one-off prompting.
FeatureBDALabGeneric AI chatSelf-practiceTutor only
CASPer-style scenarios✓××✓
Timed 3-question flow✓××✓
Quartile-style instant feedback✓×××
Decision Arcade drills✓×××
Saved progress history✓×××
Human tutor review option✓××✓
Available any time✓✓✓×
How the AI grading works
Our scoring looks for the same qualities strong CASPer answers need: empathy, fairness, confidentiality, judgment, structure, and concrete next steps.
Why we built it
When we prepared ourselves, most alternatives felt overpriced for what they offered. BDALab keeps the core practice affordable and adds human review only when you want it.
Human review when it matters
Human-graded attempts are reviewed by real 4th-quartile CASPer tutors and guaranteed in under 5 hours with a quartile score and detailed feedback.
Any questions?
What makes BDALab different?
BDALab is built specifically around CASPer-style judgment, not generic interview practice. You practice with timed scenarios, structured written responses, Decision Arcade drills, and feedback that looks at the qualities graders actually care about: empathy, fairness, judgment, communication, clarity, and concrete next steps. The goal is not just to tell you whether an answer sounds good, but to show you how to make the next answer stronger.
Is the AI feedback meant to replace a real CASPer grader?
No. Instant AI feedback is designed for high-volume practice, pattern recognition, and fast improvement between study sessions. It helps you catch weak structure, missing perspectives, vague action plans, and unclear reasoning. When you want expert confirmation, you can send a completed attempt to a real 4th-quartile CASPer tutor for human feedback guaranteed in under 5 hours.
How representative are the scenarios?
The scenarios are written to train the same ethical, interpersonal, and professional judgment skills that students commonly prepare for in CASPer-style testing. They are not official CASPer questions and should not be treated as leaked or predictive material. They are meant to build transferable reasoning habits: identify the concern, protect people from harm, communicate respectfully, and take a practical next step.
What is Decision Arcade?
Decision Arcade is a continuous multiple-choice practice mode for fast ethical judgment. You choose the strongest move, get immediate rationale, and continue for as long as you want. The first 10 questions are free; after that, membership unlocks unlimited Decision Arcade and written scenario practice.
What do I get with a membership?
A membership unlocks unlimited written scenario practice, unlimited Decision Arcade questions, the timed three-question exam flow, instant quartile-style feedback, and saved progress history in your profile. Human review credits remain separate because those attempts are reviewed by a real tutor, but members can still buy and use them whenever they want a deeper review.
How do human-reviewed attempts work?
After completing a scenario, you can use one human review credit to send the full attempt to a real 4th-quartile CASPer tutor. The tutor reviews your structure, empathy, judgment, specificity, and communication, then returns a quartile-style result with clear feedback. The guarantee is simple: human grade in under 5 hours.
Do I need an account to buy access?
Yes. Purchases are tied to your account so your membership, human review credits, attempt history, and reviewed feedback stay saved in one secure place. This also helps prevent accidental loss of paid access if you switch browsers or devices.
Can I practice without a membership?
Yes. You can try two written scenarios and 10 Decision Arcade questions for free. After the free limit, you can continue with membership for unlimited instant practice, or you can use human review credits when you want a tutor to grade a completed attempt.
Can I review my old answers?
Yes. Your profile stores previous AI-graded attempts and Decision Arcade accuracy so you can revisit your answers, compare scores, and see whether your responses are becoming more consistent over time.
Is BDALab affiliated with CASPer or Acuity Insights?
No. BDALab is an independent preparation tool and is not affiliated with, endorsed by, or sponsored by CASPer, Acuity Insights, or Altus Assessments.
Can I use BDALab in French?
Yes. You can switch the main practice experience between English and French with the language control. Scenarios, question flow, feedback labels, purchase copy, and the landing-page guidance are available in both languages.