A research technique that studies one establishment through the use of interviews, documents, and other materials is called
a. a sample survey.
b. a work history.
c. an establishment survey.
d. a case study.
e. a non-participant observation.
Question 2
The secret of achieving high survey response rates in the NHSLS project was
a. thorough interviewer training and a highly mobilized field staff who conducted face-to-face interviews.
b. the result of years of careful planning including several pilot studies to identify participants for self-administered survey forms.
c. thorough study of areas and neighborhoods where subjects were to be contacted for interviews.
d. based on careful probability sampling and selection of subpopulations to be interviewed.
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