QUESTION 37 Researchers are interesting in studying how older adults' social groups change over time. The study the same 100 participants over the course of 10 years. What type of study is this? Cross-sectional Longitudinal Secondary analysis Cohort sequential QUESTION 38 You and your coworkers were all born in the early-to-mid 90s. Which means you all are members of the same: Population Sample Group Cohort