NCSU | NASA Langley Research Center | APTIMA

Testing and Validation of a Psychophysically Defined Metric of Display Clutter

Home > 1st Study

Preparations

• Secure SVS display prototypes

  • SVS HUD format (ppt)

  • SVS PFD Display Concepts (doc)

  • Display features used in landing (xls)

  • Grouping HUD features (xls)

• Identification of semantic pairs of descriptive terms

  • Semantic Pairs Analysis (xls)

  • Selection of Semantic Pairs of Descriptor Terms (ppt)

Experiment Plan

• Experimental Conditions

  • Permutations for presentation of conditions and alias structure for fractional design (doc)

• Experiment Protocol

• Text Version (doc), Graphical Version (ppt)

• Experiment Flight Scenario

• Experiment Flight Scenario (doc)

• Display Configurations

  • Display Conditions - Normal, Abnormal, Bonus (xls)

  • Display Images for Subject #1 , Subject #2, Subject #3, Subject #4 (ppt)

• Experiment Materials

  • Informed Consent Form (doc)

  • Questionnaires (pdf)

  • Orders of presentation of semantic pairs of terms through questionnaires (xls))

Results

• Dataset

  • Quantitative (rating) Data - Raw Data (xls)

  • Notes & Observations - J. Cowley's Notes (xls), E.Stelzer's Notes (doc)

  • Summary of Subject Comments on Images - S-H. Kim & D. Kaber (ppt)

• Data Analysis - Descriptive Summary (doc)

  • Defining a psychophysical transfer function – Identification of key descriptor terms (doc)

  • Regression analysis – Effect of display features on overall clutter for Normal Images, Bonus Images (doc)

  • Preliminary MDS analysis and pilot preference mapping in terms of overall clutter - pre-MDS (ppt)

  • Logistic regression analysis - Primary/confirmatory HUD PFD use as function of perceived overall clutter (doc)

  • Demographics analysis - Descriptive statistics on pilot demographic variables (doc)

  • Factor analysis - Using maximum likelihood estimation with varimax rotation, and a principal components analysis with promax rotation (doc)