This could mean that, at least to some extent, the epistemological assumption is that information is more reliable and precise when empirical methods are used to collect and analyze data (Pullen 2000: 124-128).
(iii) & (iv) The Health Belief Model was used in the study in order to explain what adolescent mothers perceived as barriers to utilizing contraception/contraception services (Ehlers 2003, p.232). This model postulates three variables as motivators of health service utilization behaviors. The model, however, was not tested in the study. Rather, it was used merely to provide a conceptual context for the investigation.
(v) Ehlers (2003, p.233) describes several steps that were taken in the study, steps considered to be the primary ethical requirements for research using human subjects (see: Oliver 2003, pp. 26-51). These included: anonymity, confidentiality, the use of informed consent forms, sensitivity to the wording of items on the questionnaire, allowing subjects to ask questions and/or refuse to answer certain items, and complying with any reasonable requests made to allow them to feel more comfortable while participating in the research.
(I) The study contained a separate ˘problem statement÷ section which followed logically from a brief introductory review of the research (Ehlers 2003, p. 230). The problem was to find out why adolescent South African mothers did not use birth control/