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Table 1 The five steps in the ‘chain’ and how they were measured

From: Usability of the SAFEWAY2SCHOOL system in children with cognitive disabilities

Step: Measurement tool Specification
I Eye tracker SMI RED 500a
II Structured questionnaire 25 statements Asking What is it you see?
III Structured questionnaire 25 statements Asking What do need to know/to do now?
IV Acceptance and Usability Questionnaire Verbal/written response to 4 trust statements
V Acceptance and Usability Questionnaire Verbal/written response to 17 accept/act statements
  1. a http://www.smivision.com/en/gaze-and-eye-tracking-systems/products/red-red250-red-500.html