When a reader is enrolled in a challenge with text box activities, they must type in a response in order to complete that activity. Once they have submitted their answer to a traditional non-repeatable activity, a reader can edit their response at any time during the challenge's duration by navigating back into the applicable challenge, clicking over to the Badges tab, and clicking the activity badge. They can then click the "Edit Answer" button under their response to amend their original answer.
Readers cannot view or edit responses to repeatable text box activities within points challenges. Administrators cannot edit readers' responses for either repeatable or nonrepeatable activities.