The guidelines for accessible testing and Assesment builld on the guidelines previously mentioned. It provides clarification of terminology i.e.citingWillingham and Cole “Validity is the all-encompassing technical standard for judging the quality of the assessment process. Validity includes, for example, the accuracy with which a test measures what it purports to measure, how well it serves its intended function, other consequences of test use, and comparability of the assessment process for different examinees.”
It highlinghts general good practice of accessible desighn “From the earliest design stages, test developers consider accessibility standards.” and it makes good use of examples “But sometimes an accessibility feature can diminish validity. Suppose, for example, that an art test that is intended to measure a student’s ability to write descriptions of artwork (such as paintings), and that the questions present visually displayed pictorial images of the artwork as prompts. Standards for accessibility might require that text descriptions of the artwork be made available to the test taker. However, to do so would make it virtually impossible to detect the test taker’s proficiency in producing the text descriptions, thereby posing a threat to validity.”
I suggest that all the guidelines mentioned in previous activities are relevent to assesment, however the additional requirements and validity required for assesment must also be considered.