Build notes, field stories, and technical walkthroughs from 20 years in market research. Each post covers a tool I built and the real-world problem behind it.
Why existing incidence rate tools fail market researchers, and how I built a free calculator using Census ACS data across 200+ MSAs with 15 demographic dimensions.
Free healthcare feasibility calculator for HCP and patient research. Covers specialty physician counts, rare disease prevalence, and the dramatically higher CPIs of medical studies.
Free B2B feasibility calculator for business audience sizing. Uses NAICS codes, company size, revenue tiers, and real panel penetration rates to estimate reachable B2B respondents.
Free sample size calculator with quota subgroup analysis and finite population correction. Goes beyond basic formulas to plan statistically reliable research at the subgroup level.
Free quota feasibility planner that checks demographic and behavioral quota targets against Census population distributions before you launch your study.
Free audience overlap mapping tool with interactive Venn diagrams. Visualize how multiple target segments intersect and what that means for your sample budget.
Free demographic profiling tool with 18-dimension index scoring against U.S. Census benchmarks. Know where your audience over- and under-indexes before you field.
Free survey cost estimator with vendor-neutral CPI benchmarks. Build defensible project budgets for consumer, B2B, and healthcare research without waiting for vendor bids.
Free AI-powered survey LOI estimator. Paste your questions, get question-type classification and accurate length-of-interview estimates powered by Claude AI.
Free screener funnel simulator with waterfall visualization. Model the invite-to-complete journey and calculate your true effective incidence rate before launching.
Free natural fallout simulator mapping the complete sample pipeline from invitation to completion. Identifies your biggest operational bottleneck before it stalls your project.
Free margin of error calculator with visual confidence interval bands and reference tables. Help clients understand what their survey data can and can't claim.
Free cross-tab significance tester with z-tests, p-values, effect sizes, and power analysis. Run multi-group statistical comparisons without touching SPSS.
Free RIM weighting calculator using iterative proportional fitting. Get design effect, effective sample size, and weight distribution for your survey data.
Free field time estimator using response rate decay modeling. Forecast daily completions and catch studies trending behind schedule before they become emergencies.
Free response rate decay modeler with exponential curve fitting, half-life calculation, and shortfall detection. Know when to intervene before your study stalls.
Free AI-powered survey bias detector. Paste your questions, get instant analysis for leading questions, double-barreled items, loaded language, and unbalanced scales.
Free data quality scorecard for survey CSV files. Detects speeders, straightliners, and duplicates. All processing runs locally in your browser. Your data never leaves your machine.
Field Signal is a full-stack competitive intelligence platform that monitors outdoor industry subreddits, uses AI to cluster complaints, and detects brand-switching signals in real time.