Answer:
The researcher is trying to demonstrate a scientific experiment called <u><em>Dichotic Listening</em></u>
Explanation:
<em>Dichotic listening</em> is the listening to different acoustic events presented to each ear simultaneously. Most commonly, <em>the acoustic signals are speech, such as digits, words, consonant-vowels, or sentences.</em>
This test is used to carry out behavoural test of <em>Central auditory processing</em> which help to determine which ear (left ear or right ear ) has the <em>best advantage in listening</em>.
Themes of "doubles" and "the wrong man" are common in the films of "Alfred Hitchcock", who was considered the Master of Suspense. was an English film director and producer who was born in 1899 and <span>moved to </span>Hollywood<span> in 1939 later becoming a U.S. citizen in 1955.</span>
During the 1950s the movie industry began to boom. The most famous film to come out of this time is Godzilla. Karaoke began to pop up and made more for nightlife.
I believe they go up because for supplies to be limited, people must be buying that product. So it makes sense once the products are limited, the prices will go up because either way the people are buying. Maybe even more now, more abundantly and faster because the product is limited.