This study uses self-reported recognition of the word. Later in the study they compare their results to other tests that try to identify understanding of the wo

This study uses self-reported recognition of the word. Later in the study they compare their results to other tests that try to identify understanding of the words' meaning. I also wonder if there's any gender differential between male and female respondents in willingness to say they "know" a word that sounds vaguely familiar... and if the sound of a word also affects people's willingness to take a leap. The study doesn't seem to have included fake words or anything like that to catch guessers out (and I don't think that was relevant to what they were trying to determine, anyway). I wouldn't be surprised to learn that male respondents are more likely to take a leap for "piezoelectricity" or "thermistor" than they would be for "peplum" and "chignon".