I wouldn&#x27;t be so sure about &quot;purposefully&quot;: they are reading the same book (<a href="http:&#x2F;&#x2F;languagelog.ldc.upenn.edu&#x2F;nll&#x2F;?p=478" rel="nofollow">http:&#x2F;&#x2F;languagelog.ldc.upenn.edu&#x2F;nll&#x2F;?p=478</a>, the book is <a href="https:&#x2F;&#x2F;books.google.ca&#x2F;books?id=525HX623L_cC" rel="nofollow">https:&#x2F;&#x2F;books.google.ca&#x2F;books?id=525HX623L_cC</a>), but it seems on page 90 instead of 116. Brooks doesn&#x27;t link to the study itself, not mentioning authors&#x27; names, so I think they made a guess about which study he meant.