Which data-collection methods would be most affected by individual and age-related differences in verbal skills?

Question

Quizplus · Accepted Answer

Interviews and questionnaires rely heavily on verbal communication, so individual and age-related differences in verbal skills will have a greater impact on the accuracy and reliability of data collected through these methods compared to other methods such as naturalistic observation, structured observation, or controlled experiments.

Which Data-Collection Methods Would Be Most Affected by Individual and Age-Related