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2 years ago

A cognitive psychologist conducts a study to examine differences in cognitive functioning across stages of adulthood. He opts to

1 answer:

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A cognitive psychologist conducts a study to examine differences in cognitive functioning across stages of adulthood. He opts to study one group of young adults ages 21-28. one group of middle-aged adults aged 41-48, and one group of older adults ages 61- 68- The psychologist finding that that the middle age group outperforms the older group is a valid criticism to the study's conclusion

Explanation:

A cognitive psychologist concludes that age relates to cognitive performance on these tasks.This statement means that as a person age's its ability to perform the cognitive task declines .In the study conducted between the various age group the cognitive psychologist where able to find that the people in their middle age (i.e. between 41-48) were able to perform the cognitive task is a better way than the people in the older group. and the younger group was able to perform the cognitive task much better than the middle and the old age group.

Now their is no need for the comparison of the middle age and the old age people for performing the task because as er the conclusion the cognitive skills decline with the age.

So,the psychologist finding that that the middle age group outperforms the older group is a valid criticism to the study's conclusion

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The wealth effect, interest-rate effect, and exchange-rate effect all help explain why the aggregate demand curve is downward sl

MA_775_DIABLO [31]

Explanation:

The aggregate demand curve is downward sloping. It implies price levels are falling and the quantity of output will increase as well as the domestic income. The theories that can explain why the aggregate demand curve is downward sloping: the Pigou's wealth effect, the Keynes's interest-rate effect, and the and Mundell-Fleming's exchange-rate effect.

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2 years ago

Maddie's nominal income was $33,000 in 2012. In 2013, because of her excellent work ethic, she received a raise that increased h

Trava [24]

Answer:

-6.7 %; Hurt

Explanation:

1. Calculate Maddie's inflation adjusted income

$\text{Inflation adjusted income} = \text{2012 income} \times \dfrac{\text{2013 CPI}}{\text{2012 CPI}}\\\\= 33 000 \times \dfrac{125}{110} = \$37 500$

Maddie should be earning $37 500 in 2013 just to keep up with inflation.

2. Calculate the percent change in Maddie's real income.

Maddie is "real" salary is only $35 000.

$\text{\% Change} = \dfrac{\text{real - expected}}{\text{expected}} \times 100 \, \%\\\\= \dfrac{35 000 - 37 500 }{37 500} \times \, 100 \% = \dfrac{-2500}{37 500} \times 100 \, \% = \mathbf{-6.7 \, \%}$

The percent change in Maddie's real income is -6.7 %.

Maddie was certainly hurt by this inflation.

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2 years ago

Researchers are investigating whether people who exercise with a training partner have a greater increase, on average, in target

alexandr402 [8]

The conclusion that you will be able to reach if method I is used that cannot be concluded if method II is used is that the results can be generalized to the population as a whole.

In method I, the researchers decided to recruit volunteers. This sample includes people who do not exercise, people who exercise alone and people who exercise with a partner. On the other hand, method II will recruit participants at a community fitness center. Therefore, this sample will not include people who do not exercise. This means that method I will have a sample that is more representative of the general population.

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2 years ago

What span of dates best represents the Romantic era? what years

VMariaS [17]

Romantic Era takes place from 1800 to 1850.

The movement is called Romanticism which takes place in the 18th Century in Europe. In this era, emotion and individualism, as well as the glorification of all the past and nature and emphasized. Medieval is also much preferred than classical.

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2 years ago

Kathy and her brother Clay recently ran in a local marathon. The distribution of finishing time for women was approximately norm

xxMikexx [17]

Answer:

The proportion of women who ran the marathon and had a finishing time less than Kathy's is 66% (rounding to the next whole)

Explanation:

1. Let's review the information given to us to answer the question properly:

μ of finishing time for women = 259 minutes

σ of finishing time for women = 32 minutes

Finishing time for Kathy = 272 minutes

2. What proportion of women who ran the marathon had a finishing time less than Kathy's? Show your work.

Let's calculate the z-score for the finishing time for Kathy, as follows:

z-score = (272 - 259)/32

z-score = 13/32 = 0.41 (rounding to the next hundredth)

Using the z-table, now we can calculate the proportion of women who ran the marathon had a finishing time less than Kathy's:

p (z=0.41) = 0.6591

The proportion of women who ran the marathon and had a finishing time less than Kathy's is 66% (rounding to the next whole)

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2 years ago