What is the Study Bounce Rate?

The bounce rate is an MTurk specific metric that assesses the percentage of participants who view your study but decide not to accept it.

On Mechanical Turk, participants can preview a HIT before accepting it. During the preview, participants can see how much the HIT pays, how long it is expected to take, and read any custom instructions the requester has provided. The bounce rate is a metric that measures the percentage of participants who preview your HIT, but do not accept it. 

For example, if 100 participants viewed your HIT but only 90 of them decided to actually work on it, your study bounce rate would be 10% because 10% of participants who viewed your study decided not to proceed with completing it.

The bounce rate can give some insight into what participants think of your task. If the bounce rate for your study exceeds 20%, there may be something about the study requirements, design, or pay that is displeasing to participants, causing them to “bounce.”

TIP! In order for the bounce rate to be measured accurately, your study must only be visible to participants who qualify for it. Otherwise, the bounce rate will be inflated by unqualified participants who preview your HIT but cannot accept it. To make sure your study is only visible to qualified participants, check the option on the bottom of the Setup Hit and Payment page during study setup. 

Where can I Find the Bounce Rate?

To see the bounce rate for your study, click on the Study Details button to activate the expanded study view which holds additional information about your study. 

Once the expanded view is activated, you can see details about the number of participants who have started and completed your study. This is also where you can see the bounce rate.