Answer:
c) validity
Explanation:
Validity: In psychology, the term validity refers to the tendency of a test to measure what the test is supposed or claims to measure. It is the judgement which is based on different types of evidence.
In other words, it is the extent to which a particular conclusion, concept, or measurement is well-defined and responds accurately or precisely in the real world.
The validity of an experiment can be increased by improving measurement techniques, controlling different variables, adding placebo or control groups, etc.
In the question above, Gunter's statement is equivalent to saying that the WAIS lacks the validity.
In the autobiography, the part which describes a developing experience might be the best place to provide an insight. The usual autobiography consists of birth, heritage, education, career, and accomplishment information. Every people has a different experience which has developed them into a better person. This experience could occur in any of the parts of their life journey.
A primary source is a source that was created by someone who actually experienced that point in history.
Three examples of this could be a photograph, a diary entry, and a letter.