Table 1.

Ten steps for completing a longitudinal investigation.

Step number	Step title
1	Build a collaborative team and set a long-term plan
2	Develop a strong theoretical framework to support research questions
3	Design a comprehensive study which maps onto study aims
4	Determine the sample and develop a recruitment plan
5	Select and/or Develop measures
6	Train assessors and develop data collection procedures
7	Commence data collection
8	Develop a plan and team for data scoring
9	Develop and implement a strong plan for data management
10	Prepare for frequent and thorough communication, flexibility, and challenges