Scenario Independent Dependent Experimetal ControlVariableVariableGroupGroupA new sunscreen.has beendeveloped thatis supposed tobe moreaffective atpreventingsunburn. 30participantSprayThe other armwith the leadingformula. After4 hours in thesun,cvaluted fortheir Skinanyredness
Answer (1)
Answer:Here's how we can break down this scenario into the elements of an experiment: Scenario: Testing the effectiveness of a new sunscreen compared to a leading formula. Independent Variable: The type of sunscreen used (new sunscreen vs. leading formula). This is what the researchers are manipulating. Dependent Variable: The amount of skin redness after 4 hours of sun exposure. This is what the researchers are measuring to see if the independent variable has an effect. Experimental Group: The 30 participants who are using the new sunscreen on one arm. Control Group: The 30 participants who are using the leading formula on the other arm. This group provides a baseline for comparison to see if the new sunscreen is truly more effective. Important Note: To ensure a fair comparison, the participants should be randomly assigned to either the experimental or control group. This helps to minimize the influence of other factors (like skin type) that could affect the results.
