Back in the day, we could learn many things from telephone surveys.
But then computers and cell phones were born and people started dropping their land lines. Not surprisingly those that still have land lines are different than those who do not. Think less educated, less wealthy and older.
So clearly land line only surveys are not going to be projectable.
Instead research companies have begun to combine cell phone and computer data with the information received from land lines. Weighting the responses has proved to be tricky.
Perhaps more troubling are the results from a recent study by Pew Research to determine the validity of combined responses. Pew found that answers from phones versus computers varied by anywhere from 0 to 18 percentage points. That's a big difference. And companies are likely to make decisions based on any skew greater than 10%. Possibly wrong decisions.
Interestingly the disparities had to do with intensity - so they aren't contradictory. That's a relief.
Apparently phone respondents were more likely to give extreme responses. They are also more likely to favor the last choice they hear, while online respondents are more likely to favor the first choice.
Discrepancies were especially large when respondents were asked to access their quality of family and social life. Telephone respondents were more likely to be satisfied than online respondents. They were also more likely to say gay, lesbian, Black and Hispanics face a lot of discrimination.
Meanwhile, online respondents were more likely to rate political figures negatively.
Researchers noted that it could be possible that telephone respondents were more inclined to give socially responsible answers. (McGinty, 2021)
So where does that leave us?
Can we use research gathered exclusively online? Or should people look for combined data? Should we verify research before we use it? How would we do that? Is the the best option for people to do their own research?
Have you participated in a phone survey or live research? Did you have a desire to please the interviewer? Have you noticed any pattern to your answers when you participate in online research?
McGinty, J. (2021, April 30) What Happens When Opinion Polls Move Online? wsj.com. Retrieved January 24, 2022, from https://www.wsj.com/articles/what-happens-when-opinion-polls-move-online-11619775001