Answer:
practice effects
Explanation:
Based on the information provided within the question with regards to Leigh's experiment it can be said that her biggest concern should be practice effects. This term refers to the effects or changes that can occur when repeating the same experiment various times with the same participants. Which is what Leigh is doing, as she is only changing one variable but repeating the same experiment.
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Answer:
D) Since there are economic and political indicators that predict a strong and growing economy, the dollar will tend to appreciate as demand for the currency increases.
Explanation:
Under the conditions described in the excerpt, the United States economy would be expected to grow in the term of the new president, since the president wants to decrease tariffs, and tariffs are harmful for the overall economy.
This enviroment of strong economy would increase the demand for U.S. dollar, increasing its value against other curriences (the dollar will tend to appreciate).
Finally, a more expensive dollar and lower tariffs will encourage imports to the U.S., something that will benefit American customers.
