Well, they can choose as long as they want. But in this case the best answer would life. Does that help?
The independent variable is the variable that is manipulated by the researcher
Explanation:
The independent variable is the variable that is manipulated by the researcher and the dependent variable is simply measured later. The goal is to see the effect of the independent variable on the dependent variable (if such an effect is to be found).
Random assignment is a method for assigning participants in a sample to the different conditions, and it is an important element of all experimental research in psychology and other fields too. In its strictest sense, random assignment should meet two criteria.
The most common type of descriptive research is the case study, which provides an in-depth analysis of a specific person, group, or phenomenon. While their findings cannot be generalized to the overall population, case studies can provide important information for future research.
Road traffic rationing, cleaning of rivers and water bodies, reducing carbon emissions
