A sedimentation rate is performed by measuring the rate at which red blood cells (RBCs) settle in a test tube. The RBCs become sediment in the bottom of the test tube over time, leaving the blood serum visible above. The classic sedimentation rate is simply how far the top of the RBC layer has fallen (in millimeters) in one hour.
The scope of genealogy, however, goes well beyond family trees; extending into areas of law, technology, event planning and medicine. Hiring a genealogist can be costly, so you must conduct your own research before hiring someone to do research on your behalf.
If there is no employment reference available, look for someone who evaluated the prospect in another place, like school, a volunteer position or an internship. Friends and family members should not be accepted as references without a valid reason. character reference is rarely as revealing as an employment reference; applicants may list family, friends or other associates as personal references. Many people who give character references are personally connected to the prospect and may not give you the best insight into the real person you're hiring.