To Researchers:
If you wish to use the HSP Scale for research purposes, see Tips for Researchers. You may download the measure here.
If you wish to use the scale for anything except research, such as on a website or in a publication, you must obtain permission from the American Psychological Association in the case of the HSP Scale, the scale version here, and Kensington Press in the case of the true-false version–the “Self-Test” at the tab on this website. Either will probably only ask you to provide the copyright information, but it is illegal to use them without their explicit permission.