1. YICHIA WANG 2011/02/22 Weekly Meeting

2. Mturk  10 Acor messages  Correlation with expert annotation = 0.87  50 Acor messages + 50 Bambina messages  Correlation with expert annotation Emotional correlation = 0.70 Acor = 0.93 Bambina = 0.43 Informational correlation = 0.76 Acor = 0.78 Bambina = 0.76  Intra-class correlation (average measurement) Emotional correlation = 0.94 Acor = 0.96 Bambina = 0.91 Informational correlation = 0.93 Acor = 0.91 Bambina = 0.95

3. Breast Cancer Data - Descriptive Statistics Thread  68,158 threads  1,562,459 posts  22.92 posts / per thread User  90,242 users  54,580 users never logged in after registration  0.77 threads / per user  24.29 posts / per user

4. Number of Threads by Posted Year

5. Number of Threads by Number of Posts Min: 1 Max: 20,008 Mean: 22.92 Median: 6 99% of threads have less than 150 posts

6. Number of Threads by Response Time 11% of threads (7,785 threads) never got response Min: <1 (day) Max: 916 (day) Mean: 2.10 (day) Median: 1 (day) 99% of threads got response in 21 days

7. Number of Threads by Lifespan Min: <1 (day) Max: 2769 (day) Mean: 32.97 (day) Median: 3 (day)

8. Number of Threads versus Number of Reply Posts by Thread Starter 55% of thread starters would post again in the same thread Min: 1 Max: 1,969 Mean: 4.23 Median: 2

9. Number of Users by Registered Year

10. Number of Users by Number of Posts 51% of users (46,269 users) never posted Min: 1 Max: 21,703 Mean: 53.49 Median: 3

11. Number of Users by Number of Thread Starters 80% of users (72,587 users) never started a thread Min: 1 Max: 1,551 Mean: 3.94 Median: 1