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<p>Proven effective? Kidding much? We know that some like to say, ‘the proof is in the pudding’ despite that those words mean absolutely nothing. The correct quotation is ‘the proof of the pudding is in the eating’. One could add that ‘the proof of the pudding is in the cooking’. </p>
<p>In the case of the so-called analysis of the effectiveness of words there is no … cooking at all, except for cooking the data by selecting a list of words that are entirely subjective and mostly laughable in terms of difficulty. The contribution of the various list of words to a higher score is between nothing to very little, except for students who have a large handicap with English. </p>
<p>A legitimate preparation to the test renders the study of word lists, including DH, entirely worthless.</p>