the role of the assessment practitioner

When administering tests, what actions on the part of the assessment practitioner could tend to make the test-taker score less valid? How does the role of the assessment practitioner giving an individual test differ from that of a medical technician collecting a blood sample? what principles should guide the person who, for purpose of legal procedure, is assigned to administer a test to an uncooperative adult? Explain to a trade union leader whether, as mandated by Employment Equity Act, assessment measures can be used fair, nondiscriminatory way with job applicants who have a physical or mental disability. what are some of the important considerations when assessing young children? what key factors should be kept in mind when assessing people with physical or mental disabilities?