Answer:
The answer is the time it takes subjects to solve the problems.
Step-by-step explanation:
In experimental research, the dependent variable is a factor expected to change by the effects of an independent variable. An easy way to tell one from the other is to remember: Independent causes change in dependent. For this reason, the dependent variable may also be called "outcome" variable" or "predicted variable".
In the example, the time it takes to solve the problems depends on the diet plan.