"If, every five years, I study the gender-role attitudes of the same group of individuals, this would be an example of what kind of research design

Longitudinal research design

Explanation:

The kind of research design that this will be an example of ; Longitudinal research design .

A longitudinal research design is a type of research / survey that involves the repeated study of the same variable usually a particular group of people over a short period or over a longer period of time. it is usually carried out to determine the outcome of a particular data as seen in the question " study of the gender role attitudes of a particular group of individuals "

i bought a new phone

explanation:

i will send you the money when i get back from lunch

i think it is the third one.