2.1 Case Selection
The procedure by which informants are selected from a population to become a sub-group of interest in a case study research is called case selection. Since the study wanted to discuss differing cases, the diverse case method which is a non-random purposive procedure was used to select our informants. This method has the capability to handle different cases within categories and also explain the outcome through these cases (Gerring 2008).
By the nature of our study and for the purpose of enhancing external validity, cases that reproduce characteristics of the population and also provide differences along the dimension of theoretical interest were selected. In all, six cases -aged 65 years and above- were selected. Eisenhardt (1989) argues that while more than 10 cases are not needed in a case study, less than 4 cases hardly provide the necessary and sufficient information. Therefore, the requirement for sufficiency of evidence was achieved in this research. In order to make sure that these selected cases were evenly distributed between the urban and rural areas of the region, 3 cases were selected from each area. This urban-rural mix setting used ensured wider discussion and comparable views instead of a one-sided view, if the study had chosen urban areas over rural areas or vice versa.