Many databases have field searches for the test, scale, or instrument used in the research. The results are articles where the instrument was used in the research, so it may not be specifically about the scale. However, many researchers report some validity and reliability testing in their methods.
This field search works best if you know the exact name of the test you are interested in. Most of these scales are proper nouns with names that are consistent such as the Pain and Pain Management scale or the Beck Depression Inventory–II.