Karen constantly worries about whether her front door is locked, the toaster is unplugged, and the oven is turned off. Whenever she enters or leaves her home, she must open and close the door ten times. Then, she must lock and unlock the door ten times. After making her toast in the morning, she must plug and unplug the toaster ten times. Before leaving her house, she must press the off button on the oven ten times. If she loses count, she must start over. Needing to complete these tasks adds extra time to her morning routines, many times making her late for work. All day while she is at work, she worries that her door is unlocked, the toaster is plugged in, and the oven is on. Required:
Based on the information provided, what psychological disorder is Karen most likely experiencing?