I am publishing a survey on a crowdsourcing platform to study how people of different ages perceive certain aspects of non-literal language. The platform allows me to target people with ages in specific ranges.
My questions is: what are appropriate age ranges? Is there any literature that would, for instance, say the linguistic perception is similar for people between 25 and 34-years old? Or is 25 and 44 years old a better range? All in all, which age partitioning makes more sense in terms of linguistic development, perception of non-literal language, or any other related criterion?
For instance: 18-24, 25-34, 34-44, 45-54, >65? Or maybe 18-24, 25-44, >45?