Marvin Wolfgang’s study of males born in Philadelphia in 1945 was an attempt to measure delinquency by following those males from their 10th birthday until they were 18. This is an example of what type of study?

Cohort Study

Explanation:

Cohort Study I'd a type of longitidunal study that follows a group of people over time to understand the relationship between some attribute shared by the group at the beginning nof the survey and the eventual outcome. That's same thing that Mavin is trying to do by understudying these group of individuals for some period of time to measure deliquency.

answer; i believe its called ; checks   and balances;

answer; narrator;