Answer:
"smart" versus "worked hard" comment
Step-by-step explanation:
Independent variable: In psychological research, the term "independent variable" is determined as a variable that is being taken by the investigator or researcher while conducting a study or research to see its effect on the dependent variable. Independent variable is the variable that is being manipulated, changed or altered in an experiment. However, any changes in the independent variable will cause a direct effect on the dependent variable.
In the question above, the independent variable is "smart versus worked hard comment".