Susan asked her roommate to lower the radio because she was trying to study. her roommate had turned the radio up originally from a volume level of 14 to 15, which was just enough for susan to detect the increase in volume. her roommate turned it back down to 14 after susan asked her to lower it. susan's detection of the increase and decrease of volume is an example of:

Susan's detection of the increase and decrease of volume is an example of: DIFFERENCE THRESHOLD ALSO KNOWN AS NOTICEABLE DIFFERENCE.

Explanation:

The just noticeable difference (JND), also known as the difference threshold is the change in stimulation that we are able to detect half of the time.

There is an absolute threshold which can be confused with difference threshold. Absolute threshold means we can detect smallest levels of stimulation like detecting the lowest volume of sound. Difference threshold means we can detect differences in level of stimulation like sensing the volume change in the radio.

For Susan to detect the difference between volume of 14 to 15 is a result of difference threshold.

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.

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