The aspect of assessment that Dr. Cronbach is primarily concerned with is the internal consistency.
A reliability assessment is a tool that is used to evaluate the consistent performance of an individual or an instrument.
When this assessment is carried out in such a way that the instrument gives the same result each time it is used, the internal consistency is being considered.
Therefore, the aspect of assessment that Dr. Cronbach is primarily concerned with is the internal consistency.
Learn more about reliability assessment here:
https://brainly.com/question/3733655