Question which asks for cotwin's name was made hidden and now prepopulates questionnaire with “your twin” instead of name.

Peer involvement: Q00054 typo fixed from “work” to “worth” Q00048 added “not including time spent in class” to end of question - “On the average, how many hours per week have you spent with your friends (not including time spent in class)?

Changed “Dad” to “Father” in Q00003 Fixed headings which were not displaying properly