In an experiment, the researcher wants to determine the impact of nutrition on energy levels. Participants are provided fast food or a healthy diet for three days and then asked to engage in a long day of physical activity. The amount of time participants continue to engage in physical activity is measured. It is found that participants provided a healthy diet are able to engage in physical activity for a significantly longer period of time compared to those who were in the fast-food group. In this experiment, how is the dependent variable operationally defined?
A. Fast food
B. Healthy diet
C. Amount of time participants continue to engage in physical activity
D. Engaging in physical activity
Answer:C
In an experiment, the researcher wants to determine the impact of nutrition on energy levels. Participants are provided fast food or a healthy diet for three days and then asked to engage in a long day of physical activity. The amount of time participants continue to engage in physical activity is measured. It is found that participants provided a healthy diet are able to engage in physical activity for a significantly longer period of time compared to those who were in the fast-food group. In this experiment, how is the dependent variable operationally defined?
A. Fast food B. Healthy diet C. Amount of time participants continue to engage in physical activity D. Engaging in physical activity