About this Ontario poll from Mainstreet Research
This Ontario poll was fielded by Mainstreet Research in February 2021, with a middle field date of February 16, 2021. The poll collected data from a total sample of n=1,011 Ontario respondents via IVR technology (automated calls).
The margin of error for an online sample is not applicable.
For comparison purposes, a random sample of this size would yield a margin of error [moe] of ±3.1%, 19 times out of 20 (for entire sample only) around the 50%-mark.
The regional breakdown of this poll was not made publicly available.
If we compare these national numbers with the previous poll from Mainstreet Research (December 2020), the Ontario PC Party loses three points from 46% to 43% (variation similar to moe), the Ontario Liberal Party climbs five points from 20% to 25%, and the Ontario NDP is down one point (variation smaller than moe).
You can read more information on this poll here.