FROMTHEEXPERTS
EVOLUTION OF THE OCCUPATIONAL CLASSIFICATION FOR ATTENDANT CARE :
Registered Nurses , Licensed Practical Nurses , And Home Health Aides
By Bernard F . Pettingill , Jr PhD and Federico R . Tewes , BA
The Bureau of Labor Statistics ( BLS ) is a subsidiary of the United States Department of Labor and one of the principal fact-finding agencies of the federal government . Its primary goal over the past 137 years was to collect , process , analyze , and disseminate essential statistical data to the American public .