Question

lisa is working on a science project. her task is to answer the question: \does rogooti (which is a commercial hair product) affect the speed of hair growth\. her family is willing to volunteer for the experiment. 20. describe (in full sentences!) how lisa would perform this experiment. identify the control group, and the independent and dependent variables in your description.

Explanation:

To perform the experiment, Lisa would first divide her family volunteers into two groups. One group (the control group) would not receive Rogooti, while the other group (the experimental group) would apply Rogooti as directed. She would measure the hair length of each volunteer at the start of the experiment. Then, after a set period (e.g., several weeks or months), she would measure the hair length again. The independent variable is the application of Rogooti (either present or absent). The dependent variable is the speed of hair growth (measured by the change in hair length over time). The control group helps to ensure that any changes in the experimental group are due to Rogooti and not other factors.

Answer:

Lisa would divide family volunteers into two groups. Control group: no Rogooti. Experimental group: apply Rogooti. Measure hair length at start and after a period. Independent variable: Rogooti application. Dependent variable: hair growth speed (change in length over time). Control group isolates Rogooti's effect.