I cannot move forward after I enter a number to answer a question. How can I fix this issue?

When entering numbers in questionnaires, please do the following:

• Use number digits and not letters or dashes.
• Make sure that you are not adding a space after or before the number.
• Make sure all questions have a number answer. If the question does not apply to you, please enter “0”

Please feel free to opt out of any study tasks that you do not feel you are able to complete. Once you start a study task, you will have the option to click on one of the links that reads, “I can’t do this task” or “I don’t want to do this task”. If you do not feel you are able to complete a task, simply click on one of these and the task will end.