Your organization decides to let some people work from home and others work in the office. Over 6 months, it measures employees' performance levels by counting things that indicate better performance (e.g., the amount of emails every employee sends, the number of errors every employee makes, positive/negative customer reviews). Leaders want to know whether working from home v. in the office causes people to perform better (or worse). In this situation, what is the independent variable. The number of mistakes an employee makes The employee's work location (working from home v. working in the office) The employee's job performance value How long the employee has been in their job