84 The process was repeated several times in order to remove …. In an attempt to make each interviewee feel as comfortable as possible, the interviewer …. Describing the process: typical verbs in the passive form The data were normalised using …. Descriptive data were generated for all variables. The procedures of this study were approved by …. Data for this study were retrospectively collected from …. Prompts were used as an aid to question two so that …. The experiments were run using custom software written in…. Two sets of anonymised questionnaires were completed by …. The solution was washed three times with deionized water and …. A total of 256 samples were taken from 52 boreholes (Figure 11). Significance levels were set at the 1% level using the student t-test. Data management and analysis were performed using SPSS 16.0 (2010).
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