23. Which of the following were found to provide reference data predictive of subsequent job performance? a. personnel officers of former employers b. current spiritual advisors c. relatives d. supervisors of former employers 24. Which of the following statements concerning recommended steps for using reference checks is INCORRECT? a. Reference data are most properly used when the data involve job-related concerns. b. Applicants should not be asked to give written permission to contact their references. Reference takers collecting information by telephone or in person should be trained in how to interview reference givers. d. All reference check information should be recorded in writing. c. 25. Which of the following types of evidence would be most useful in defending a negligent hiring suit? a. validation evidence for selection procedure b. background investigation c. applicant flow characteristics d. job performance ratings of job incumbents higher than average of applicant pool