The tests. Outline of the tests ; Development of the tests ; Findings arising out of test development ; Interpretation of test performance -- The design of the survey. The proposed sample ; The variables -- The administration of the survey. Obtaining the sample ; The test administration -- The nature of the sample tested. The schools ; The pupils -- The treatment of the data from tests. Test marking ; Item analysis ; The establishment of a proficiency measure in each skill area -- Performance in relation to the main variables. Age ; Sex ; Ethnic group -- Performance in relation to the background variables. Percentage of immigrants in school ; background/education ; Length of stay in Britain ; Special English teaching ; Pre-school education ; English spoken at home ; English spoken at school -- The validity of the proficiency measures.