Surveys often reveal more about the "researchers" than of their objects. The item "B.A. or equivalent" - but omitting "B.Sc." - shows that the author suspects many participants to be actually folk researchers or activists for heritage preservation ("folkies"), rather than "genuine folks". (This suspicion seems to be subconscious, since otherwise the other options would be "M.A." etc., and "none of these".)

Too bad that the Golden Age, when all folk songs were invented by ordinary folks, is so long ago that it probably never existed.

55% of all statistics yield what their authors want them to. Another 45% yield what the professor expects. The remaining 10% tell the truth ;).