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<p>[QUOTE=&quot;Greg C, post: 26595, member: 334&quot;]I just found something else about this particular instrument, at the back of it, there is a small slit in the alminum back plate that allows you to see the words one at time. I would speculate that the participant in the research would sit here, and the researcher at the other end of the instrument. The words are also right side up at this perspective.[/QUOTE]</p><p><br /></p>

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