Types of measurement scales and measurement errors

1. Define measurement as it is used in staffing. Explain why proper measurements of the candidate’s characteristics are important. 2. Differentiate between different types of measurement scales and measurement errors (scales: nominal, ordinal, interval, ratio; random vs. systematic errors). 3. Explain the following concepts as they apply to R&Ls: construct, correlation, cut-off scores, validity, and its types, reliability, bias (including unconscious bias), and fairness. 4. Recognize common strategies used to achieve and improve the reliability and validity of the recruitment and selection processes. a. What standardization is all about? What are the levels of standardization? [content, administration & scoring] 5. Recognize the difference between scientific and non-scientific ways of acquiring information.