Questionnaires will be translated into the local Manyika dialect of Shona, back-translated and pre-tested in the pilot study. Data entry and validation will be undertaken using SPSS-PC+. Appropriate data entry forms will be designed for each section of the survey questionnaires and skip-rules, range checks etc will be employed to reduce data entry errors. BRTI/Blair staff have considerable experience of using SPSS-PC+ for data entry.