You can use skills to restrict access to a pool. A skill is an assessment of some aspect of the user's performance (a number between 0 and 100), which can be updated as tasks are completed.
To select users by skill:
Set up a quality control rule for calculating the skill.
Add a skill filter to the pool.
Dynamic pricing allows setting the price for a task page in accordance with the skill level. Users can get more money for better performance.
Give an incentive to users by making a skill public, so that the user can see the skill level as well as the price range.
- Open the pool settings.
- Click + Dynamic pricing in the Price section for the task page.
- Choose a skill in the pop-up window.
- Define different ranges between 0 and 100 and specify the price for each.