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Methods & statistics

Sampling Methodology & Statistical Design

Design statistically valid sampling strategies for M&E data collection.

Buy · $29Included with membershipBrowse all skills

Installs into Claude, ChatGPT, Gemini, Copilot, any AI that reads a SKILL.md. Drop the SKILL.md into your AI of choice.

At a glance
CategoryMethods & statistics
Price$29 · or included with membership
Works inClaude, ChatGPT, Gemini, Copilot
FormatSKILL.md + references

A folder your AI loads on demand. It answers from the source, and says [NOT IN SOURCE] instead of inventing.

What it is

The method, ready to use.

Design statistically valid sampling strategies for M&E data collection. Covers probability and non-probability sampling, sample size calculation, stratification, clustering, and power analysis. Essential for any quantitative data collection.

Who it's for

Is this you?

For statisticians and M&E leads designing statistically valid sampling strategies.

Ask it about

It triggers on

  • sampling methodology
  • sample size
  • how many respondents
  • sampling frame
  • random sampling
  • stratified sampling
  • cluster sampling
  • power calculation
  • confidence interval
  • margin of error
  • representative sample
Included workflows

What it produces

  • Generate Sampling Plan
  • Calculate Sample Size

Pairs with: survey-design, evaluation-design, data-quality-assessment, qualitative-methods.

How to use it

From download to answer in three steps.

01

Download & unzip

You get a folder with SKILL.md, its references and a cheatsheet.

02

Drop it into your AI

Add SKILL.md to your AI of choice — a Claude Project, a ChatGPT Custom GPT, a Gemini Gem, or your tool's skills folder.

03

Ask

Ask in this domain. It answers from the source, cites the section, or says [NOT IN SOURCE].

Questions

Before you install.

What exactly is a skill?

A skill is a document your AI loads on demand: a SKILL.md with the method, reference files, a cheatsheet and a provenance manifest. The model answers from it and replies [NOT IN SOURCE] instead of inventing.

Which AIs does it work with?

Claude, ChatGPT, Gemini, Copilot and any tool that reads a SKILL.md. Drop the file into your AI of choice — a Claude Project, a ChatGPT Custom GPT, a Gemini Gem, or your tool's skills folder.

Will it answer from the source?

Yes. Every package carries explicit answering rules: cite the section for each claim, label authority vs reasoning, and never invent a figure, citation or rule.

Is it kept current?

Yes. Method and donor skills are reviewed quarterly, and members can re-download the latest version any time from their dashboard.

Sampling Methodology & Statistical Design — an installable M&E skill · Evaluation AI