How long survey collection continues with law firm sponsors

For 44 research reports I have determined how long the survey was open, i.e., the data collection period. I picked those reports haphazardly over time — making no effort to be random or representative but simply to start calculating some statistics. With that caveat, the average data collection period is 1.5 months with a standard deviation of 0.74, which means that about two-thirds of the periods fell between 0.8 months (~3 weeks) and 2.3 months (~5 weeks). The shortest collection period was 0.1 months (3 days) while the longest was 3 months.

The plot shows the distribution of open periods together With the month in which the survey launched. No particular month seems favored.

Here are several reasons why law firms call a halt to collecting survey responses.

  1. New responses have slowed to a trickle
  2. A practice group is eager to start the analysis and find something out!
  3. Staff and partners have been pushed enough to persuade more participants
  4. The firm has emailed three reminders to potential participants
  5. The co-contributor has done enough or been pushed enough
  6. Qualified responses have hit triple digits, a respectable data set
  7. The participant group is sufficiently representative or filled out
  8. Marketing wants to get out first or early on some current issue
  9. The firm wants to meet the promise it made to participants to send them a report promptly
  10. The budget says it’s time to start the analysis (and usually a report)

The analysis and report preparation can begin before the last survey submission, but that is easier to do with a programming script that lets an analyst read in updated data and re-run the analysis with little additional effort.

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