1. Barriball, K.L. and While, A. (1994) ‘Collecting Data Using a Semi-Structured Interview: A Discussion Paper’, Journal of Advanced Nursing, 19(2): 328–335.
2. Bloor, M. (1978) ‘On the Analysis of Observational Data: A Discussion on the Worth and Uses of Inductive Techniques and Respondent Validation’, Sociology, 12(3): 545–552.
3. Bogen, K. (1996) ‘The Effect of Questionnaire Length on Response Rates: A Review of the Literature’, Proceedings of the Section on Survey Research Methods (American Statistical Association): Volume 91, 1020–1025.
4. Bramel, D. and Friend, R. (1981) ‘Hawthorne, the Myth of the Docile Worker, and CIass Bias in Psychology’, A m eri ca n Psychologist, 36(8): 867–878.
5. British Sociological Association. (2004) Statement of Ethical Practice for the British Sociological Association, Durham: British Sociological Association (BSA).