Download Complete Report (PDF 1.19mb) - RNIB

3. Methodology
3.2.4. Methodology for assessing impact of voice output
A subset of the items relating to ‘basic use’ are explored separately to full, complete
use (all items). Items 1. to 12. from the ‘first time use’ list were considered related to
basic, core use. Items 1 to 11 from the ‘subsequent use’ list were considered related to
basic, core use.
The data were explored in different ways:
Proportion of sample reporting ‘yes, needed help’ for any of the ‘basic’ tasks (a
crude index of basic tasks relate to items 1 to 12 for first time use, and 20 to 38 for
subsequent use).
Proportion of sample reporting ‘yes, needed help’ to any of the ‘first use’ tasks (12
items.
Proportion of sample reporting ‘yes, needed help’ to any of the ‘subsequent use’
tasks (11 items)
Proportion of sample reporting ‘yes, needed help’ for any of the tasks
Proportion of sample reporting ‘yes, needed help’ to any of the ‘first time use’ tasks
(19 items)
Proportion of sample reporting ‘yes, needed help’ to any of the ‘subsequent use’
tasks (18 items)
Average number of tasks/items for which the samples needed help from someone
else (for all tasks and basic tasks as defined above)
3.3. Industry research: semi-structured interviews
3.3.1. Rationale
The industry research was conducted to address research questions 4 and 5, about how
and whether accessibility features in product design and what barriers industry cites for
developing accessible digital radio equipment.
3.3.2. Sample
Six semi-structured interviews were conducted with senior staff members (eg Chief
Executives, Chief Operating Officers, Directors/Senior Management) across different
parts of the consumer digital radio equipment supply chain. Five manufacturers and
one component supplier participated. Some retailers were also invited to participate,
34