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Study design

As explained in Causal Inference for Data Science

The plan specifying how an experiment assigns conditions, measures outcomes, and controls sources of bias.

Study design turns a causal question into a plan: state a hypothesis, assign treatments, measure an outcome, and protect randomization from mistakes. section 1.3.4

A practical design proceeds through three linked stages:

  • Form a hypothesis about whether a treatment or decision changes the primary outcome. section 1.3.4
  • Execute the experiment carefully, especially the randomization process, because assignment errors can produce incorrect conclusions. section 1.3.4
  • Analyze responses by comparing treatment groups using the observed outcome data. section 1.3.4

Comparing treatments

A medical experiment might test whether a new treatment works at least as well as an old one. If 80% improve under the new treatment and 70% under the old, the group results provide evidence for evaluating the hypothesis. section 1.3.4

How Causal Inference for Data Science covers it

How deep it goes
Traces hypothesis formation, execution, randomization, and outcome analysis, while deferring detailed methodological guidance.
Examples
Uses website A/B tests, medical randomized controlled trials, and binary patient-improvement data.
What you can do after
Apply it via hypothesis setting, careful randomization, experiment execution, and treatment-group outcome comparison.
How it connects
Connects causal inference with hypotheses, randomization, A/B testing, randomized controlled trials, treatments, outcomes, and placebos.

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Related concepts

This explainer was generated by Manning's knowledge graph from the text of Causal Inference for Data Science. The section links point to the parts of the book it draws on.