Psychometric Theory Case Study 2.docx - Daniel Washington...

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Daniel Washington Psychometric Theory 10/07/19 Case Study 2 People have been rated on their suitability for an advanced training course in computer programming on the basis of six ratings given by their manager (rated 1=low to 20=high): 1. a) intellect 2. b) interest in doing the course 3. c) experience of computer programming 4. d) likelihood of them staying with the company 5. e) commitment to the company 6. f) loyalty to their team and two other ratings: 1. g) number of GCSEs 2. h) score on a computer programming aptitude test The training department believe that these are really measuring only three things; intellect, computer programming experience and loyalty, and want you to carry out a factor analysis to explore that hypothesis. Describe the decisions you would have to make in carrying out a factor analysis and what the results would be likely to tell you. To address the department’s concerns about the ratings’ validity and reliability, I would conduct an exploratory factor analysis. I would use this type of analysis to examine patterns in the
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