The student fails to clearly state the independent and dependent variables in the research question, which should specify the school subject as the independent variable and reaction time as the dependent variable. Additionally, the student does not adequately describe the method of analysis for measuring the dependent variable, nor do they explain the choice of techniques for measuring both variables. There is also a lack of clarity regarding the sampling technique used to select participants, as well as a discussion on the number of trials and precision of measurements. However, the student successfully identifies controlled variables, addresses safety, ethical, and environmental issues, and provides a sufficiently detailed methodology that allows for reproducibility of the investigation.
