09-27-2017, 04:32 PM
(09-27-2017, 03:27 PM)danbrotherston Wrote:(09-27-2017, 02:17 PM)tomh009 Wrote: Why on earth wouldn't they spend a few thousand dollars and talk to people who are actually using GRT? It's easy enough to board a bus, and you'll even get a representative sample.
Web surveys aren't always the best option ...
Your sample there will be highly skewed towards people who take the bus more frequently. Worse, you'll entirely miss people who might take the bus, but aren't able to because the service improvements you're planning aren't implemented.
Sampling is very hard.
Still better than 46 self-selected Internet users. If we want a broad sample of all Waterloo Region residents, then we need a telephone survey. But what's the purpose of the survey?
The current one is not useful at all in my opinion. For example, there is only one respondent who takes the bus less than once a month. And only nine daily users. The margin of error on this survey would be massive.