It would be phyical aggression.
Although we don’t fully understand why it is easier for younger children to learn new languages than for older children and adults, learning a language does appear to have what psychologists call a __SENSITIVE PERIOD__, an interval when people are receptive to learning and can acquire new knowledge more easily.
Answer:
Covariation of cause and effect.
Explanation: Covariation of cause and effect implies that when the cause is present(reading the newspaper daily), effect happens afterwards(displaying more knowledge of current events than students who do not read the newspaper daily).
When cause is not present, effect does not happen.
Answer:
The investigador should: Discuss the pros and cons of both the investigational drug and the commercially available drug and then allow the subject to decide whether to withdraw from the research to take the new drug.
Explanation:
An investigator's ethical duty, is to keep the subject of investigation, well informed with all the details about the invesigation. At a phase 2 of the study the subject suposposedly has been informed of the prosedure, following the informed consent. So in this particular case the investigator has to present all the new information so the subject can decide for himself what is best for him.
During phase II of an investigation, it is necessary to evaluate the benefits or negative aspects of a drug, to ensure the safty and wellbeing of the subject. If a drog is known to harm a subject, the procedure would stop. In this phase is important to have the data to decide and discuss what is best for the subject.