To maintain consistency when testing multiple rooms, testing should be conducted in room equivalents where:

To maintain consistency when testing multiple rooms, testing should be conducted in room equivalents where:

• A. All components tested are the same in each room equivalent
• B. Each room has different components
• C. No two rooms are compared
• D. Rooms are tested in random fashion

Answer: (C)

Grouping rooms into room equivalents means you test spaces that are the same in the elements you’re evaluating, and you test the same components or surfaces in each of those rooms. This makes the results across rooms directly comparable, so any differences you see reflect real differences in the rooms rather than differences in what was tested. If you tested different components in different rooms, or treated rooms without a consistent equivalence, you’d introduce extra variables and the data would be hard to compare. Likewise, if you avoid comparing rooms altogether, you lose a standard for checking consistency across spaces. The clearly better approach is to test the same components in each room that is considered equivalent, so the results from different rooms can be meaningfully compared and a consistent picture emerges.

Grouping rooms into room equivalents means you test spaces that are the same in the elements you’re evaluating, and you test the same components or surfaces in each of those rooms. This makes the results across rooms directly comparable, so any differences you see reflect real differences in the rooms rather than differences in what was tested. If you tested different components in different rooms, or treated rooms without a consistent equivalence, you’d introduce extra variables and the data would be hard to compare. Likewise, if you avoid comparing rooms altogether, you lose a standard for checking consistency across spaces. The clearly better approach is to test the same components in each room that is considered equivalent, so the results from different rooms can be meaningfully compared and a consistent picture emerges.