Regarding fieldwork , the author thought : it has the vital significance to the anthropology research , but also has certain limitation , this article discusses to carry on the concrete elaboration participates and interview in the observation , emic and etic interpretive method , cultural relativism theory from three aspects .
In a subsequent study , the researchers may decide to adopt an etic approach by studying not only middle-class white families , but also lower-income white families , black american families , spanish american families , and asian american families .
If so , the emic approach would reveal a different pattern of family interaction than would the etic approach , documenting that research with middle-class white families cannot always be generalized to all ethnic groups .