Probit Analysis 2.0

Probit Analysis is a focused statistical tool for modeling quantal dose–response relationships using the probit link. It helps you estimate effect levels such as LD50/ED50, assess model fit, and generate clear, publication-ready outputs for research and quality control.

Key features:

• Fits generalized linear models with a probit link for grouped/binomial response data
• Estimates LD50/ED50 (and other quantiles) with confidence intervals and standard errors
• Supports weighting, replicate assays, and tests for parallelism
• Provides goodness-of-fit statistics, overdispersion checks, and residual diagnostics
• Compares alternative links (e.g., probit vs. logit) and dose transformations
• Imports data via paste or file (e.g., dose, number responding, total), and exports tables and charts
• Produces clean summaries, coefficient tables, and effect plots suitable for reports

Typical users:

• Toxicology, pharmacology, entomology, and ecology researchers
• Bioassay laboratories and quality-control analysts
• Students learning dose–response modeling

Workflow:

1. Load or paste dose–response data (responders and totals by dose).
2. Choose model settings (link, weighting, transformations).
3. Fit the model, review diagnostics, and refine if needed.
4. Report LD50/ED50 estimates with intervals and export figures and tables.

Note: Results depend on data quality and model assumptions. Validate findings and consult a statistician for critical decisions.

Probit Analysis is developed by alexander. The most popular version of this product among our users is 2.0. The name of the program executable file is probit.exe.

You can check 5Spice Analysis, Project Risk Analysis, AutoFEM Analysis and other related programs like Chromosome Analysis Suite at the "download" section.