Attachment C-Cover Letter

Attachment C

Cognitive Interview Cover Letter to Parents
of Eligible Adolescents

April 23, 2010

Thank you for your interest in your child participating in this study on prescription drugs. Your child's participation will help us see how well young people between the ages of 12 and 17 understand questions about prescription drug use. Enclosed are two copies of a permission form and a return envelope.

As the interviewer mentioned during the call with you on [DATE], she will be calling you to discuss the study in more detail and allow you to ask any questions you have about the study. Please review the form before the call.

As a reminder, the interviewer will be calling you on:

Date:

Time:

Please have the permission form in front of you when the interviewer calls. The interviewer will not continue if you do not have the form in front of you. During the call, you can stop the interviewer and ask questions at any time.

At the end of the call, the interviewer will ask for your permission for your child to be interviewed. If you give your permission, please sign one copy of the form and return it in the self-addressed envelope as soon as possible. It won't cost you anything to return the form.

Please keep the other copy of the form for your records.

If you need to reschedule the call, or if you do not want your child to participate, please call Stephanie Stolzenberg toll-free at 1-800-334-8571, extension 27245.

Sincerely,

Larry Kroutil

RTI International

April 23, 2010