Changing number of participants

You can do this if the study is live by pressing the ‘Change’  button in the survey dashboard, or the ‘Edit’ button if the study is stopped or paused.

You can increase the number of participants but MTurk does not support lowering their number. 

If you need to lower the number you can copy the study and relaunch it with the lower number of participants and exclude workers who completed the first study.

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