Professor grant is interested in studying the development of a sense of humor. she collects data from groups of 6-year-olds, 16-year-olds, 26-year-olds, and 46-year-olds. what type of research design is professor grant using?
a. cross-sectional
b. longitudinal
c. double-blind
d. behavior genetics

a. Cross-sectional design

Explanation:

Cross-sectional design -

It is the type of research design , where the study require data from all the fields of interest , for analysis , is known as cross - sectional design.

In this type of method , every bit and piece of information is gathered from the research topic and then analysed , in order to have a proper and brief knowledge of the topic.

Hence, from the question,

The research method adapted by the professor Grant is the Cross-sectional design.

more than 1 person for sure

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.