Beginners and intermediates tend to underestimate their RPE by approximately 5 points, often getting about 5 more reps than they estimated when pushed to failure.

“people are really bad at estimating it and so it would be beginners and intermediates they find that they tend to underestimate their rpe by about five wow which is pretty incredible and uh we we've seen it in a lab like we'll take somebody in and they'll put a weight on they'll do a wrap and and you'll ask them what what's your idea what was what was that like and they'll say their rpe and then the research rules will actually make them take it to failure while they're like yelling at them and encouraging them and on average they'll get five more reps than they estimated they would have”