Steps in Developing a Sampling Plan (7) Step 5: Determine Sample Size Once the sampling method has been chosen, the next step is to determine the appropriate sample Step 6: Developing Operational Procedures for Selecting Sample Elements Involves determining whether a probability or nonprobability sample is being usedSteps in Developing a Sampling Plan （7） • Step 5: Determine Sample Size – Once the sampling method has been chosen, the next step is to determine the appropriate sample size. • Step 6: Developing Operational Procedures for Selecting Sample Elements – Involves determining whether a probability or nonprobability sample is being used