I need to compare data from the NLSY79 and NLSY97 cohorts. Using the website's tutorials, explain why constructing comparable samples is necessary and outline the key steps involved in creating a parallel sample, such as 'work status at age 20,' for research projects utilizing both cohorts.
Navigate to the 'Getting Started' section of the website. Locate and click on the 'Tutorials and Videos' link. Find the tutorial titled 'Constructing Comparable Samples across the NLSY79 and NLSY97' and click to access it. Read the tutorial to identify the reasons for needing comparable samples and the key steps involved. Summarize the necessity for comparable samples and list the outlined steps.
State that constructing comparable samples is necessary due to 'small differences in design' between the NLSY79 and NLSY97 cohorts. List at least three of the following key steps for constructing comparable samples, as described in the tutorial: selecting samples for analysis, determining age and interview years, creating variable tagsets for NLSY79, creating variable tagsets for NLSY97, and constructing the comparable variable for both samples.