Rationale: If a survey, test, or questionnaire is difficult for people with limited visibility, colorblindness, or learning disabilities to read and understand, they are less likely to respond to the questions and even if they do respond, their responses may not be as accurate as they would be if the measure had been accessible.

Rationale: Words can have different meanings for different groups. Piloting the measures with members of the target populations can help to ensure that items in the measures convey to participants what the evaluators intend so that items are not considered offensive and that there is clarity in what is being asked. For example, calling an adult female a “girl” or a “lady” would not be acceptable in some groups while in other groups, “girl” is an acceptable indication of informality and “lady” is the polite term. The term “personal responsibility” can mean something very different to a person with a disability than to someone who is able-bodied. Someone can be described as an “undocumented person” or an “illegal alien”. The legal status may be the same but the images presented by the terms are quite different.