Statistical inference for exploratory data analysis and model diagnostics.

  • Buja A
  • Cook D
  • Hofmann H
 et al. 
  • 2

    Readers

    Mendeley users who have this article in their library.
  • N/A

    Citations

    Citations of this article.

Abstract

We propose to furnish visual statistical methods with an inferential framework and protocol, modelled on confirmatory statistical testing. In this framework, plots take on the role of test statistics, and human cognition the role of statistical tests. Statistical significance of 'discoveries' is measured by having the human viewer compare the plot of the real dataset with collections of plots of simulated datasets. A simple but rigorous protocol that provides inferential validity is modelled after the 'lineup' popular from criminal legal procedures. Another protocol modelled after the 'Rorschach' inkblot test, well known from (pop-)psychology, will help analysts acclimatize to random variability before being exposed to the plot of the real data. The proposed protocols will be useful for exploratory data analysis, with reference datasets simulated by using a null assumption that structure is absent. The framework is also useful for model diagnostics in which case reference datasets are simulated from the model in question. This latter point follows up on previous proposals. Adopting the protocols will mean an adjustment in working procedures for data analysts, adding more rigour, and teachers might find that incorporating these protocols into the curriculum improves their students' statistical thinking.

Author-supplied keywords

  • Data Interpretation, Statistical
  • Housing
  • Housing: statistics & numerical data
  • Humans
  • Models, Theoretical
  • Statistical
  • Theoretical

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Andreas Buja

  • Dianne Cook

  • Heike Hofmann

  • Michael Lawrence

  • Eun-Kyung Lee

  • Deborah F Swayne

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free