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A. Grizzly noticed through Facebook that at the time of pandemic, a lot of people resorted to volunteerism and there appears to be a sudden increase in the altruistic traits in Filipinos. Now, she wanted to know whether the pandemic was the driving force in this apparent surge in altruism. Researcher A then measured the altruism of Filipinos before and after the pandemic. 1. What is the Independent Variable? 2. What is the Dependent Variable? 3. What is the Control Variable, if any? 4. What could be considered a Confounding Variable? (Give at least 3) B. While Echo was teaching his students online, he noticed that most of the students who are joining the class discussion with open cameras garnered high scores during exams. This lead to his belief that visual learning is helpful specially during online classes. He wanted to confirm his belief and conducted an experiment. Echo required his students in Section A to open their cameras during class discussion and proceeded to teach their lesson. Then, he asked Section B to turn their cameras off during discussion and then proceeded to teach the same lesson. 1. What is the Independent Variable? 2. What is the Dependent Variable? 3. What is the Control Variable, if any? 4. What could be considered a Confounding Variable? (Give at least 3) C. Caspian developed a drug that he believed would be a cure-all drug for insomnia. In order to test the efficacy of the drug, he conducted a study involving three groups of people with insomnia. Group A was given the drug for insomnia already available in the market, Group B was given a placebo drug to serve as a baseline and Group C was given the newly developed drug. After the three groups had taken their medication, their quality of was measured in terms of length of sleep, depth of sleep (REM or Noon REM) and sleep stage (1, 2, 3, 4, and 5). To make sure that there would be no other factor affecting their sleep, Chemist subjected them to uniform diet and day routine. 1. What is the Independent Variable? 2. What is the Dependent Variable? 3. What is the Control Variable, if any? 4. What could be considered a Confounding Variable? (Give at least 3) D. While drinking soft drinks in front of a convenience store at a corner of the road, Delta observed that women drivers almost always use their signals before turning compared to men drivers. In fact, she observed that women are more obedient to traffic rules, contrary to popular knowledge that women are not good drivers. To support this assumption, she conducted a study and wanted to know whether gender is related to tendency to follow traffic rules. 1. What is the Independent Variable