Use a search engine to discover coding schemes that already exist for ethnic group, family expenditure, industry group, socio economic class and the like. To do this you will probably find it best to type the phrase ‘coding ethnic group’ into the search box. 

a. Discuss how credible you think each coding scheme is with a friend. To come to an agreed answer pay particular attention to:

• The organisation (or person) that is responsible for the coding scheme;

• Any explanations regarding the coding scheme’s design;

• Use of the coding scheme to date.

b. Widen your search to include coding schemes that may be of use for your research project. Make a note of the web address of any that are of interest.