Mark
Here's a histogram of the trust level distribution in discourse.
I'm a little surprised that nearly half the class is still on level 1. Here are the Discourse scores and corresponding total scores.
60 367
50 345
50 343
50 339
50 338
50 302
40 288
40 283
40 277
30 266
40 275
20 246
20 225
20 222
20 221
20 218
20 214
20 212
20 190
20 155
20 151