Documentation of Validity for the AT-SAT Computerized Test Battery
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DOT/FAA/AM-01/6 Documentation of Validity for the AT-SAT Office of Aviation Medicine Washington, D.C. 20591 Computerized Test Battery Volume II R.A. Ramos Human Resources Research Organization Alexandria, VA 22314-1591 Michael C. Heil Carol A. Manning Civil Aeromedical Institute Federal Aviation Administration Oklahoma City, OK 73125 March 2001 Final Report This document is available to the public through the National Technical Information Service, Springfield, Virginia 22161. U.S. Department of Transportation Federal Aviation Administration NOTICE This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The United States Government assumes no liability for the contents thereof. Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No. DOT/FAA/AM-01/6 4. Title and Subtitle 5. Report Date Documentation of Validity for the AT-SAT Computerized Test March 2001 Battery, Volume II 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Ramos, R.A.1, Heil, M.C.2, and Manning, C.A.2 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) 1Human Resources Research 2FAA Civil Aeromedical Institute Organization P. O. Box 25082 11. Contract or Grant No. 68 Canal Center Plaza, Suite 400 Oklahoma City, OK 73125 Alexandria, VA 22314-1591 12. Sponsoring Agency name and Address 13. Type of Report and Period Covered Office of Aviation Medicine Federal Aviation Administration 800 Independence Ave., S. W. Washington, D.C. 20591 14. Sponsoring Agency Code 15. Supplemental Notes Work was accomplished under approved subtask AM-B-99-HRR-517 16. Abstract This document is a comprehensive report on a large-scale research project to develop and validate a computerized selection battery to hire Air Traffic Control Specialists (ATCSs) for the Federal Aviation Administration (FAA). The purpose of this report is to document the validity of the Air Traffic Selection and Training (AT-SAT) battery according to legal and professional guidelines. An overview of the project is provided, followed by a history of the various job analyses efforts. Development of predictors and criterion measures are given in detail. The document concludes with the presentation of the validation of predictors and analyses of archival data. 17. Key Words 18. Distribution Statement Air Traffic Controllers, Selection, Assessment, Document is available to the public through the Job Analyses National Technical Information Service, Springfield, Virginia 22161 19. Security Classif. (of this report) 20. Security Classif. (of this page) 21. No. of Pages 22. Price Unclassified Unclassified 179 Form DOT F 1700.7 (8-72) Reproduction of completed page authorized i TABLE OF CONTENTS VOLUME II Page CHAPTER 4 - DEVELOPMENT OF CRITERION MEASURES OF AIR TRAFFIC CONTROLLER PERFORMANCE ................... 1 CBPM ..................................................................................................................................................... 1 CHAPTER 5.1 - FIELD PROCEDURES FOR CONCURRENT VALIDATION STUDY ....................................................... 13 CHAPTER 5.2 - DEVELOPMENT OF PSEUDO-APPLICANT SAMPLE ......................................................................... 17 CHAPTER 5.3 - DEVELOPMENT OF DATA BASE ................................................................................................. 21 CHAPTER 5.4 - BIOGRAPHICAL AND COMPUTER EXPERIENCE INFORMATION: DEMOGRAPHICS FOR THE VALIDATION STUDY .................................................................................................................................................. 31 Total Sample ....................................................................................................................................... 31 Controller Sample ............................................................................................................................... 31 Pseudo-Applicant Sample .................................................................................................................... 32 Computer Use and Experience Questionnaire ..................................................................................... 32 Performance Differences...................................................................................................................... 33 Relationship Between Cue-Plus and Predictor Scores .......................................................................... 33 Summary............................................................................................................................................. 35 CHAPTER 5.5 - PREDICTOR-CRITERION ANALYSES ............................................................................................. 37 CHAPTER 5.6 - ANALYSES OF GROUP DIFFERENCES AND FAIRNESS ..................................................................... 43 CHAPTER 6 - THE RELATIONSHIP OF FAA ARCHIVAL DATA TO AT-SAT PREDICTOR AND CRITERION MEASURES .. 49 Previous ATC Selection Tests .............................................................................................................. 49 Other Archival Data Obtained for ATC Candidates ........................................................................... 51 Archival Criterion Measures ................................................................................................................ 52 Historical Studies of Validity of Archival Measures .............................................................................52 Relationships Between Archival Data and AT-SAT Measures .............................................................. 54 REFERENCES ................................................................................................................................................ 61 List of Figures and Tables Figures Figure 4.1. Map of CBPM Airspace............................................................................................................. 67 Figure 4.2. Airspace Summary: Sector 05 in Hub Center ............................................................................68 Figure 4.3. Example CBPM Item ................................................................................................................ 69 Figure 4.4. Aero Center Airspace ................................................................................................................. 70 Figure 5.2.1. Sample Classified Newspaper Advertisement for Soliciting Civilian Pseudo-Applicants ............70 Figure 5.2.2. Sample flyer advertisement for soliciting civilian pseudo-applicants .......................................... 71 Figure 5.3.1. AT-SAT Data Base (*) ................................................................................................................ 72 Figure 5.3.2. CD-ROM Directory Structure of AT-SAT Data Base ................................................................73 Figure 5.5.1. Expected Performance: OPM vs. AT-SAT ..................................................................................74 Figure 5.5.2. Percentage of Selected Applicants whose Expected Performance is in the Top Third of Current Controllers: OPM vs. AT-SAT ................................................................................................... 75 Figure 5.6.1. Fairness Regression for Blacks Using AT-SAT Battery Score and Composite Criterion ..............75 iii Figure 5.6.2. Fairness Regression for Hispanics Using AT-SAT Battery Score and Composite Criterion.........76 Figure 5.6.3. Fairness Regression for Females Using AT-SAT Battery Score and Composite Criterion ............77 Figure 5.6.4. Confidence Intervals for the Slopes in the Fairness Regressions .................................................78 Figure 5.6.5. Expected Score Frequency by Applicant Group .........................................................................79 Figure 5.6.6. Percent Passing by Recruitment Strategy .................................................................................... 80 Tables Table 4.1. CBPM Development and Scaling Participants: Biographical Information .................................81 Table 4.2. CBPM Scaling Workshops: Interrater Reliability Results ...........................................................82 Table 4.3. Performance Categories for Behavior Summary Scales ...............................................................83 Table 4.4. Pilot Test Results: Computer-Based Performance Measure (CBPM) Distribution of Scores ................................................................................................................ 84 Table 4.5. Pilot Test Results: Means and Standard Deviations for Ratings on Each Dimension .................85 Table 4.6. Pilot Test Results: Interrater Reliabilities for Ratings ................................................................................................................. 85 Table 4.7. HFPM Pilot Test Results - Correlations Between Ratings for Rater Pairs (Collapsed Across Ratee) Both Across All Scenarios and Within Each Scenario .....................................................87 Table 4.8. Rater-Ratee Assignments ........................................................................................................... 88 Table 4.9. Computer-Based Performance Measure (CBPM): Distribution of Scores in Validation Sample 88 Table 4.10. Number and Percentage of Supervisor Ratings at Each