I got a question by email and thought it would be best answered by a post:
First, is MTurk the most popular avenue for ScriptingRT? Or is there another/better platform of access?
Mturk is definitely the best way to recruit participants quickly, and the data quality is reasonable. We also used facebook to spread a link to studies, but it is usually much slower. But note that we always use another platform, Qualtrics, to build a questionnaire around the scriptingRT. I guess it would be possible to embed a scripingRT file directly in a Mturk task, but I never tried that.
Also, is it possible to use either ScriptingRT or MTurk to create a design where a worker must complete several tasks (eg reading three sets of sentences over a span of 3-5 days) before being paid?