The LINQ measures two types of information needs in patients who have chronic obstructive pulmonary disease (COPD): (a) the patient expresses a need for information, and (b) the patient indicates a behaviour for which there is evidence that this behaviour compromises self-management.

Note that research shows that patients often forget the information they are given. So, if patients report they have not been given information, this indicates an information need, even though the information may have been given before.

Note that the LINQ does not measure patient knowledge, but...

The HCAMQ is designed to help researchers measure two related psychological variables: attitudes to complementary and alternative medicine and holistic health beliefs. The scale is primarily designed for researchers.