Probit Analysis Calculator
LD₅₀/ED₅₀ via maximum likelihood probit regression
Finney's method
Animal Study Details
Dose‑Response Data
| Dose (mg/kg) | Response (%) | Sample Size (n) | Actions |
|---|---|---|---|
Response % = (number responding / n) × 100
Example Studies
Probit Guide
- • Minimum 3 doses with partial responses (10–90%)
- • Natural response rate (controls) can be entered separately
- • Slope > 0 indicates increased effect with dose