To study changes in answers to survey questions over time, a researcher could conduct a Panel study.
Panel studies are used to examine how particular social groupings behave. The purpose of the panel survey is to concentrate on the particular factors that will affect the respondent's behavior, which is frequently demographics and other patterns.
Thus, A specific type of longitudinal study called a panel study follows the unit of analysis over an extended period, frequently many years, at predetermined intervals. The primary characteristic of panel studies is the repeated measures they collect from the same sample at several points in time.
Learn more about Panel Study here:
https://brainly.com/question/3973173
#SPJ2