PHOTO INTERPRETATION TEST DEVELOPMENT

AN INTERPRETER PERFORMANCE TEST WAS DEVELOPED FOR USE IN STUDIES OF INTERPRETATION EQUIPMENT AND METHODS. THE TEST WAS DESIGNED TO MEASURE PRIMARILY THE VISUAL RATHER THAN THE COGNITIVE ASPECTS OF INTERPRETER PERFORMANCE. FORTY INEXPERIENCED AND TEN EXPERIENCED INTERPRETERS EXAMINED 85 FRAMES OF PHOTOGRAPHY AND WERE REQUIRED TO SEARCH FOR AND IDENTIFY FIVE TYPES OF TARGETS. AN ITEM ANALYSIS WAS CONDUCTED TO DEVELOP TWO EQUIVALENT FORMS OF A PERFORMANCE MEASURE. EACH FORM CONSISTED OF 23 FRAMES OF IMAGERY CONTAINING 32 TARGETS. THESE MATCHED SETS OF ITEMS ALLOW THE SAME GROUP OF SUBJECTS TO BE TESTED UNDER TWO EXPERIMENTAL CONDITIONS WITH MUCH GREATER SENSITIVITY THAN IS NORMALLY ACHIEVED. WITH ONLY FIVE SUBJECTS, 7% PERFORMANCE DIFFERENCES CAN BE DETECTED AT THE 95% CONFIDENCE LEVEL. CHI SQUARE ANALYSES WERE PERFORMED TO DETERMINE THE EFFECTS OF TARGET, SCENE AND SUBJECT DIFFERENCES. TARGET TYPE AND TARGET BACKGROUND COMPLEXITY HAD THE GREATEST EFFECT ON PERFORMANCE; SUBJECT EXPERIENCE HAD RELATIVELY LITTLE EFFECT. /AUTHOR/

  • Authors:
    • Leachtenauer, J C
  • Publication Date: 1973-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00203051
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 27 1974 12:00AM