I don’t see PaidViewpoint on your list. I like using that site. I signed up for it on June 28, 2016, but I guess I forgot about the site and stopped using it on July 24, 2016 but had a total of $1.91. I started using it again on May 5, 2018, and I’m now up to $27.05 and have a trait score of 10, which is the highest. The surveys are easy and you don’t get disqualified. I mostly earn 10 cents, but once in awhile I earn some good money like 62 cents. It does take awhile to add up, but it’s free money.
While surveys vary widely in how they are conducted and used, there are a number of components that are common across nearly all surveys. Many of these common features have been studied in extensive detail by survey methodologists, psychologists, statisticians, and many other fields of research. The general process of survey research is outlined in the figure below.
Scammers use a diverse variety of methods to allure and dupe unsuspecting victims. Some ads and offers look so real that even the most seasoned internet veterans can be tricked. However, many scams target people new to the market who may be more susceptible to “get rich quick” schemes because they're unaware of what you can reasonably make taking surveys. It is incredibly uncommon to be offered more than $10 to complete a 20 minute survey. Not that one offering that or more is definitely a scam, it's just important to be cautious. While some experienced and well credited survey takers receive legitimate offers paying that pay big money, if you're new to survey taking you should definitely steer clear of anyone offering you hundreds to complete a survey.
“I participated in an in-home product trial study. A coffee machine company sent me one of the coffee makers along with about 200 coffee pods. I received $7 for completing 3 short surveys. Plus, after the study, the company said I could keep the coffee maker. So, I got like 4 mos of coffee for everyone in my household, a free coffee maker and $7!” - David W.