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goldfiish [28.3K]
3 years ago
12

Dr. Rajah is studying the effects of a new drug on cognitive performance. After random assignment of groups, one group takes the

drug while the other takes a placebo. Afterward, both groups do a series of timed brain teasers and are scored on performance. Dr. Rajah finds a significant difference between the two groups. Does his experiment have external validity?
Social Studies
1 answer:
Alinara [238K]3 years ago
7 0

Answer:

No

Explanation:

External validity refers to being able to apply the results of the research experiment to real life situations. Therefore based on the information provided in the question it can be said that Dr. Rajah's experiment does not have external validity. This is mainly due to the fact that brain teasers are problems that does not reflect on real world problems or events.

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True or False: You can be considered an accomplice if your roommate has marijuana in your shared room or apartment.
erastovalidia [21]
The answer is true…!!!
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3 years ago
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Emily owns an ice cream parlor. In an hour she can produce 40 milkshakes or 40 ice cream sundaes. Ben also owns an ice cream par
bulgar [2K]

Answer:

Emily's opportunity cost of producing 1 milkshake is 1 ice cream sundae.

Ben's opportunity cost of producing 1 milkshake is​ 0.5 ice cream sundae.

Explanation:

Both Emily and Ben own an ice cream parlor.

In an hour Emily can produce 40 milkshakes or 40 ice cream sundaes.

Emily's opportunity cost of producing a milkshake is

= \frac{What\ is\ sacrificed}{What\ is\ gained}

= \frac{40}{40}

= 1 ice cream sundae

In an hour Ben can produce 20 milkshakes or 10 ice cream sundaes.

Ben's opportunity cost of producing a milkshake is

= \frac{What\ is\ sacrificed}{What\ is\ gained}

= \frac{20}{10}

= 0.5 ice cream sundae

We see that Ben has a lower opportunity cost of producing milkshake, so we can say that he has a comparative advantage in producing milkshake.

5 0
3 years ago
What is the most popular religious group in the United States? Explain how this differs from Canada. Why do you think
zheka24 [161]

Answer:

Mormons are by far the most religious of the major religious groups in the U.S., with 74% classified as highly religious. Protestants, Muslims and Catholics are more of a mix of highly and moderately religious adults, while Jews and those who identify with another non-Christian religion are the least religious.

Explanation:

The most popular religion in the U.S. is Christianity, comprising the majority of the population (73.7% of adults in 2016). Christianity is the largest religion in Canada, with Roman Catholics having the most adherents. Christians, representing 67.3% of the population in 2011, are followed by people having no religion with 23.9% of the total population.

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3 years ago
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Fofino [41]

Answer:

The correct option is: maintenance rehearsal; elaborative rehearsal

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Memory rehearsal is described as the practice or mental technique by which information is processed and retained as a memory.

The two types of memory rehearsal are: maintenance rehearsal and elaborative rehearsal

The maintenance rehearsal refers to the process of storing the given information in the working or short-term memory. It involves repetition of the information without understanding or connecting with other information stored in the memory

Whereas, elaborative rehearsal involves understanding the given information and connecting with other information stored in the memory. This method involves retaining the information in the long-term memory.

Therefore, Nora is maintenance rehearsal. Whereas, Miles is using elaborative rehearsal.

5 0
3 years ago
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Based on the drug that Suzanne started on, in regards to the SSRI or the Selective serotonin reuptake inhibitor, it will likely that it will take two to six weeks before she may be able to consume or the drug will have the maximum drug effect.

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