The answer is A. True
Hope this helps.
- Max
Answer: Demand characteristics.
Explanation:
Demand characteristics are the traits shown by participant of the research and experiment in which they behave according to the expectancy of researcher or experiment so that aim of the research can be accomplished .This creates biasness in research process and decrease validity of the experiment.
According to the question, John's positive reply to the situation where someone need helps if his/her car is broken displays the impact of demand characteristics .In actuality , he would probably not help the person by stopping and he just answered in positive manner to support the study.Thus, the reply is biased.
This affect the United States or Mexico through options B and D: US exporters would see an increase in demand in Mexico for their goods and consumers in the United States would be able to purchase more goods from Mexico for their money.
<h3>
How would this affect the United States or Mexico?</h3>
Value of the Mexican peso depreciates relative to the US dollar. This will make Mexican goods cheaper to the US residents because now they've to pay less USD to buy 1 unit of Mexican peso.
However, Mexicans will find US goods costlier than before because now they have to pay more pesos to buy 1 USD.
Therefore, demand for Mexican export will increase and the demand for US export will decrease.
Hence, correct answer is option B and D
Learn more about Mexico, refer to the link:
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Maturation is a threat to internal validity stemming from either long-term or short-term physiological changes occurring within the participants that may influence the dependent variable.
<h3>
What are physiological changes?</h3>
Ageing causes physiological changes in all organ systems. Arteriosclerosis develops, blood pressure rises, and cardiac output declines. Lung function is compromised, vital capacity is reduced, and expiratory flow rates are slowed.
Pregnancy causes a number of physiological changes in the mother, such as an increase in fat and total body water, a drop in plasma protein concentrations, particularly albumin, an increase in blood volume, cardiac output, and blood flow to the kidneys, and a decrease in blood pressure.
Learn more about physiological changes here:
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