Function: Describe
Figure 10 is a pie chart, appropriate for expressing results as proportions of the whole population of respondents. Compare this with figure 9.
Figure 11 is a further variation on the bar chart used. This time the number of responses to each option are presented as separate bars rather than as proportions of the total bar. This is slightly easier to read, but is only possible here because fewer options are represented than in Figure 9. Notice that the writer has chosen appropriate graphical representations for each data set. A program such as MS Excel can help with this.
This extract is a good example of the use of figures and descriptive text together to describe complex results. The figures provide an immediate visual impression of the data, while the text adds explanatory detail. Figures should be numbered and titled, as they are here, and placed as close as possible to the text which refers to them.
When describing statistical results it is good practice to qualify any statement of number ("most respondents") with the exact percentage and number, as the writer has done here in brackets.
Figure 9 is a type of bar chart which allows several aspects of the findings to be represented visually in the same space. The different options for providing results are presented along the x axis in descending order of popularity. The different responses to each option are shown as proportions of the total response set by the different shaded regions within each bar.
The writer describes the use of a differently phrased question to elicit respondents" opinions about providing results to participants after a trial. This allows the writer to confirm and strengthen an earlier finding. As with much good writing at Masters level, the description contains an element of analysis.