A medical assistant scheduled three patients to arrive at 0900 and another three patients to arrive at 1000. This is an example of which of the following scheduling methods?

Open scheduling refers to a system where patients can come in at their convenience without a fixed appointment time. This method lacks the structured grouping of appointments seen in wave scheduling and does not apply here, as patients are specifically scheduled for arrival at designated times.

Cluster scheduling organizes appointments based on similar types of visits or procedures within a set timeframe. While this method can improve efficiency, the example provided does not specify that patients are being grouped by procedure type; rather, it shows multiple patients scheduled at the same time without a particular clustering strategy.

Double booking involves scheduling two or more patients for the same appointment slot, typically when the provider expects to handle overlapping visits. However, in this case, patients are scheduled in waves at distinct times (0900 and 1000), indicating that they are not being double booked for the same slot.