Each explanation should be one or two grammatically correct sentence.
1. Human capital
2. Cognitive ability test
3. Job knowledge test
4. Personality test
5. Biographical data inventory
6. Integrity test
7. Situational interview
8. Situational judgement test
9. Work sample
10. Assessment center
11. Physical ability test
12. Background check
13. Validity
14. Reliability
15. Negligent hiring
16. Executive search firm
17. Succession planning
18. Recruitment yield pyramid
19. Qualification inventory
20. Competency
21. Job analysis
22. Job description
23. Job specification
24. HR scorecard
25. Strategic HRM
26. Competitive advantage
27. Performance appraisal
28. Labor relations
29. Staffing
30. Line authority
31. Staff authority