I was verifying Arabic voices in commonVoice and while listening to some sentences I clicked yes by mistake to a recorded voice while it is definitely no but I had no option to change my choice .
I think adding review to the sentences we verified or allow us to edit our choice is a good idea specially that sometimes you click unconsciously the exact button of the previous sentence.
I know exactly what you mean. After longer sessions I also clicked a few times yes where I shouldn’t.
My understanding is that every sentence has to get two yes votes or two no votes, right? So as a start one could review the sentence with two yes votes, but also one no vote by a third person. This could reduce the number of false positives a lot.
Generally it would be great to have more options to work with the existing data and to improve its quality.