Information about the Inventory of Interpersonal Problems (IIP-64). Note that, although we have permission to provide some information about the IIP-64, Mind Garden Inc. has exclusive rights to distribute it in full.
iip64An object of class circumplex_instrument of length 5.
The normative means and standard deviations are the manual's Table 4.4 (pp. 27-29), divided by 8 to express the printed eight-item scale sums as item means. They are reproduced under the credit line the publisher's permission requires:
"Reproduction by special permission of the Publisher, Mind Garden, Inc., www.mindgarden.com from the Inventory of Interpersonal Problems by Leonard M. Horowitz, Lynn E. Alden, Jerry S. Wiggins, & Aaron L. Pincus. Copyright © 2000 by Leonard M. Horowitz, Lynn E. Alden, Jerry S. Wiggins, & Aaron L. Pincus. Further Reproduction is prohibited without the Publisher's written consent."
That credit line is the publisher's own required wording, reproduced verbatim; its 2000 copyright date is part of that wording and is not the edition the values come from, which is the 2003 third edition cited below.