A Researcher Is Interested in the Impact of a New

A researcher is interested in the impact of a new type of training diaper on the age at which toddlers become potty-trained. The researcher plans to split a group of 100 toddlers into two groups-in one group, members will wear the new training diapers until they are potty-trained, and in the other, members will wear their usual diapers. Answer these questions about this study: (1) What is the researcher's hypothesis? (2) How should the researcher split the 100 toddlers into two groups? (3) Which group is the experimental group, and which is the control group? (4) What is the independent variable? (5) What is the dependent variable? (6) What results will the researcher need in order to make a conclusion about the effectiveness of the new training diaper? (7) Will the researcher be able to conclude that there is a cause-and-effect association? Why or why not?