A health psychologist is investigating occupational stress levels among corporate employees. Which of the following measurements collected during this study represents ordinal level data?
The department in which the employee works (e.g., Marketing, Finance, Human Resources, or IT)
The rank order of employees from most to least stressed, as judged by an occupational health specialist
The concentration of salivary cortisol in nanomoles per litre (nmol/L\text{nmol/L}nmol/L) collected from employees at 9:00 AM
The ambient temperature of each department's office workspace measured in degrees Celsius (∘C^\circ\text{C}∘C)