As I just noted, the e-mail offered me survey points. But when I clicked on the link to take the survey, I got offered e-rewards "dollars". But from the text of the webpage, it does appear that 100 points is the same as $1 in e-rewards currency.
Topic: Study about Beverages
Research Sponsor: A Valued e-Rewards Partner
Full credit amount*: receive $5.00 in e-Rewards Currency when you access and fully complete the research survey.
Partial credit amount*: receive $0.50 in e-Rewards Currency as a token of our appreciation if your survey answers do not meet the criteria to fully qualify for the study OR if the predetermined number of participants has been reached.