This is the Pool of Questions:

Q1. Do you order music online?
Yes    No

Q2. Have you downloaded MP3s?
Yes    No

Q3. Have you watched live music webcasts?
Yes    No

Respondent #1 Sees:

Q1. Do you order music online?
Yes    No

Q2. Have you downloaded MP3s?
Yes    No

Respondent #2 Sees:

Q2. Have you downloaded MP3s?
Yes    No

Q3. Have you watched live music webcasts?
Yes    No