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Study design

As explained in Experimentation for Engineers

The planning of an experiment's configurations, measurements, allocation, and duration to obtain useful results efficiently.

Study design plans which configurations to measure, how measurements are allocated, and how long an experiment runs. It isolates a system change’s business impact while limiting time, performance, and implementation risk. section 1.2.1

A practical design makes the experiment answerable and efficient:

  • Replicate individual measurements to improve reliability, randomize assignments to remove confounder bias, and prescribe the minimum sample size. section 2.4
  • For adaptive optimization, define an initial parameter, measure its metric, fit a response surface, select the next parameter, and repeat. section 6.1.4
  • Stop adaptive measurement when the response surface model and therefore the experiment design stop changing. section 6.1.4

A first configuration measurement

An optimization run begins at parameter value 0, measures CPU time, and records 1.2025010344211848. That observation becomes the basis for a response surface model and the design of the next experiment. section 6.1.4

How Experimentation for Engineers covers it

How deep it goes
Explains replication, randomization, minimum measurements, adaptive selection, and a model-based stopping rule.
Examples
Uses A/B assignment and an iterative CPU-time optimization at parameter value 0.
What you can do after
Apply replication and randomization in A/B tests, or operate adaptive optimization through successive model-guided measurements.
How it connects
Connects A/B testing, bandit algorithms, response surface methodology, and Bayesian optimization.

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