ERIC Number: ED476927
Record Type: RIE
Publication Date: 2000-Apr-15
Job Task Analysis: An IRT Application.
Bergstrom, Betty A.; Blitz, David L.
Job task analyses provide a link between job performance and examination content. This paper describes a methodology that uses Item Response Theory to place job task analysis data on an equal interval scale that allows for quantitative comparisons between tasks and provides a method for quantifying a test blueprint. An actual analysis was conducted using responses of 427 individuals in a nursing subspecialty who responded to a role delineation questionnaire to rate 161 nursing intervention tasks. Items with the highest calibrations on the latent variable received the highest relative percentage of test items, and items with the lowest calibrations received the lowest percentage of test items. Where job content must be closely tied to a predictive instrument for purposes of making informed personnel decisions, the rating scales derived from this method are more advantageous than those derived from raw scores. Others may adapt this methodology to create similar instruments to be used for purposes other than the one shown. (Contains 8 figures, 8 tables, and 22 references.) (Author/SLD)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the Society for Industrial and Organizational Psychology (15th, New Orleans, LA, April 2000).