Dr. Watson is interested in health care for children whose families are homeless. She decides to investigate how parents who are homeless go about finding health care for their children including well-child care as well as emergency care. She decides to interview homeless parents beginning with the question, "Can you tell me how you find health care for your children?" After data analysis, she develops a theory based on the data that describes how homeless families find pediatric healthcare. At the end of each interview, Dr. Watson says, "some people I have interviewed mentioned asking a social worker about finding care. Did you ever do that ________." This is known as the _____________ method.
1) validity method
2) none of these answers is correct
3) constant comparative method
4) data saturation method