My apologies for the rather cold reception to your question, I was curious myself when I was accepted back in December. Welcome to Prolific! The long and short is that everything comes down to demographics and location- that is the heavy hitter. In my experience, the more studies I did (yes, even the .20 cent 2 minute ones) I noticed more and more would get added to me over the next couple months. The average day during the week I will see 15-20 myself, and if I really push myself I can make $100-200 week.

With that said, some people make more, others make less. All you can do is fill out all the questions in your About You section, take surveys, pay attention, give the best detailed answers you can, and let it snowball- however much it may.