Eye-Fitting of Straight Lines.

Abstract

Because little is known about properties of lines fitted by eye, we designed and carried out an empirical investigation. Inexperienced graduate and post-doctoral students instructed to locate a line for estimating y from x for four sets of points tended to choose slopes near that of the first principal component (major axis) of the data and their lines passed close to the centroids. Students had a slight tendency to choose consistently either steeper or shallower slopes for all sets of data. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1981
Accession Number
ADA096716

Entities

People

  • Andrew F. Siegel
  • Cleo Youtz
  • Edward Trapido
  • Frederick Mosteller

Organizations

  • Princeton University

Tags

DTIC Thesaurus Topics

  • Analysis Of Variance
  • Biostatistics
  • Data Science
  • Data Sets
  • Experimental Design
  • Factor Analysis
  • Health
  • Health Services
  • Information Science
  • Military Research
  • Public Health
  • Statistical Analysis
  • Statistics
  • Students
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Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Educational Psychology
  • Instructional Design and Training Evaluation.