Address
For some scales, there is a mailing or Web address of a contact person from whom further in- information may be obtained. This has been done in cases where permission is required to use a scale, where the user's manual is not published and where we have not reproduced a copy of the Instrument.
References
Rather than list all available references to each method, we cite only those thought to provide useful information on the instrument or on its validity or reliability. We have not cited studies that merely used the method but did not report on its quality. If needed, such references can be identified through the Science Citation Index.
Summary Tables.
The Summary Table at the end of the introduction to each chapter compares relevant characteristics of the measurements reviewed in that chapter. This serves as a consumer's guide to the various methods and gives the following information