1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vfiekz [6]
3 years ago
15

Dr. Grodner is conducting an experiment on age-related changes in memory. He is comparing how well retirees and high school stud

ents perform on a memory task. In order to conveniently schedule research participants, he has the older adults come to the lab during the day, since they are retired. The students come to the lab in the evening, after they are finished with school and other activities. What is the problematic confound in this study?
A. It is unfair to compare older adults to younger adults, because older adults sometimes experience memory problems.
B. Dr. Grodner has not operationally defined memory for the purposes of his study.
C. If memory turns out to be something that varies by time of day, it is problematic that the older adults all do the study in the morning and the younger adults do the study at night.
D. Older adults have a lot more memories than younger adults, which confound the study.
Social Studies
1 answer:
Sedaia [141]3 years ago
6 0

Answer: C. If memory turns out to be something that varies by time of day, it is problematic that the older adults all do the study in the morning and the younger adults do the study at night.

Explanation: Confounding variables are additional variables that are not considered in an experiment but however, have an effect on the results of the experiment. For example, if the time of the day affects the memory, this is a confounding variable and it may explain the differences between the memory of the retirees and the school students rather than their age.

Without considering this possibility, the result of Dr. Grodner's experiment will be useless and invalid.

You might be interested in
Which of the following nation groups represent the largest economy in the world?
blondinia [14]
This is a really interesting question because the answer is highly disputed. Obviously Australia doesn't have the economic strength of Europe or the North American Free Trade Agreement, but between the two, it can be measured in different ways, many people would suggest that EU is in fact bigger, but by measure of GDP, the EU is dominated by NAFTA with a per capita GDP of just over $21k in comparison to EU28's which is just over $18k

I would suggest that it is NAFTA at the moment but this answer might be subject to change in the future,
5 0
3 years ago
How did the age of exploration become a global turning point?
mr_godi [17]

Answer:

im not sure if this was the answer you were looking for but
It was a turning point because Europeans discovered land many never knew existed. This also effected the indigenous people of the discovered land. It made the western Nations the strongest ones in the world (not counting the Ming Dynasty). It also started the slight downfall of the Ottoman Empire because it couldn't colonize, and many nations that could get to the "New World" could colonize making their profit better than some who couldn't. Another reason is the new things they can trade now back to the other countries who couldn't colonize making them make the decision to either buy the goods or to colonize themselves so they can also get a piece of the new products. Lastly it also was when the slave trade began

Probably make this shorter but this is all of the reasons i can think of

3 0
2 years ago
Why the pyramid of energy is always upright?
Y_Kistochka [10]

Answer:

We I think the answer is a) loss of energy from one trophic level to another.

Not perfect but I hope you get it:-):-)

6 0
2 years ago
Read 2 more answers
Can someone help me...
Ray Of Light [21]

Answer: India has had a traditional society,  classified into castes, having massive social and economic inequalities;  

the Indian Constitution was created to build structures that could help with fundamental rights and freedoms, promoting social reforms and thus improve the education and economic status of the general people.

With over 40 articles boosting the welfare of the people, to guarantee a fair social order; distributing their resources to support the common good, to avoid the detriment of the means of production, and covering social, cultural and economic rights, such as the right to work, to public assistance, to education, and guaranteeing a decent living standard and the enjoyment of social opportunities. Thereby (B).

6 0
3 years ago
Actions in one part of the country or world that have an economic impact on what happens elsewhere are examples of _________.a.
lakkis [162]

Answer:Economic interdependence

Explanation:

Economic interdependence refers to a relationship that exist between two regions, nations or other entities in which all are relying on each other in terms of different economic aspects such as goods, services and financial services and other economic factors.

Economic interdependence is efef give when each party plays their role.

8 0
3 years ago
Other questions:
  • How can Rock Blocks increase the number of people that apply with the company? How can realistic job previews be used to increas
    15·1 answer
  • Which of the following is not a theory about why we need sleep
    10·1 answer
  • At 50 years old, Andrew is an important source of support for his younger sister who has a serious disability. As a computer eng
    12·1 answer
  • The problem of alcohol usage among teenagers is grossly overstated. kids have been drinking and getting drunk in college for yea
    12·1 answer
  • You meet julieta for the first time, and she says something you do not understand. what should you do?
    7·1 answer
  • Mary, a salesperson licensee, may be investigated by the Commission for the following: Taking compensation without her broker’s
    11·1 answer
  • What was the name of the treaty which ended the Revolutionary War?
    7·2 answers
  • In which Market is money bought and sold using other types of money?
    15·1 answer
  • Which of the following statements best represent democracy? Select all that apply. Select one or more: a. the right and capacity
    7·1 answer
  • En que consiste la caarrera de higiene y seguridad
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!