What are the theories regarding changes in voice with age?
What will be an ideal response?
While young people's voices tend to be full and resonant, older voices tend to sound weaker and thinner. There are a number of theories for why these changes occur. Some researchers speculate that this is due to changes in the larynx (the voice box), the respiratory system, and the muscles that control speech. Others contend that these changes are due to poor health and are not typical of normative aging. What we do know is that age-related changes in the voice include lowering of pitch, increased breathlessness, trembling, slower and less precise pronunciation, and decreased volume.
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In principle, you could make a distribution of means by:
A) figuring the mean of all the possible samples of a given size and dividing it by the variance B) using the sample's mean and variance divided by the population's parameters C) randomly estimating the population variance from the various samples of the same size, and using the sample mean in place of the population mean D) randomly taking a very large number of samples from a population, each of the same size, and making a distribution of their means
Jillian earned $10 per hour as gallery assistant. This money represents her __________.
A. income B. wealth C. earning potential D. net worth
The new concept that di Leonardo introduces is
A kin networks. B division of labor among kin. C the work of kinship. D emotional labor.
If John does not have a job and is actively searching for a job, he is _____
a. part of the official unemployment rate b. not part of the official unemployment rate c. a discouraged worker d. all of the above